| S.No |
Patch Description |
Bulletin id |
Severity |
| 1 | Cumulative Security Update for ActiveX Killbits for windows 8.1 (KB2900986) | MS13-090 | Critical |
| 2 | Windows 8.1 Update 1 for (KB2919355) | MS14-018 | Critical |
| 3 | Windows 8.1 Update (KB2932046) | MS14-018 | Critical |
| 4 | Windows 8.1 Update (KB2934018) | MS14-018 | Critical |
| 5 | Windows 8.1 Update (KB2937592) | MS14-018 | Critical |
| 6 | Windows 8.1 Update (KB2938439) | MS14-018 | Critical |
| 7 | Security Update for Windows 8.1 (KB2928120) | MS14-025 | Important |
| 8 | Security Update for Windows 8.1 (KB2961899) without KB2919355 | MS14-025 | Important |
| 9 | Security Update for Windows 8.1 (KB2957189) | MS14-031 | Important |
| 10 | Security Update for Windows 8.1 (KB2978742) | MS14-043 | Critical |
| 11 | Security Update for Windows 8.1 (KB2993651) | MS14-045 | Important |
| 12 | Security Update for Windows 8.1 (KB3010788) | MS14-064 | Important |
| 13 | Security Update for Windows 8.1 (KB3003743) | MS14-074 | Important |
| 14 | Security Update for Windows 8.1 (KB2982998) | MS14-076 | Important |
| 15 | Security Update for Windows 8.1 (KB3020393) | MS15-002 | Critical |
| 16 | Security Update for Windows 8.1 (KB3021674) | MS15-003 | Important |
| 17 | Security Update for Windows 8.1 (KB3019978) | MS15-004 | Important |
| 18 | Security Update for Windows 8.1 (KB3022777) | MS15-005 | Important |
| 19 | Security Update for Windows 8.1 (KB3004365) | MS15-006 | Important |
| 20 | Security Update for Windows 8.1 (KB3000483) | MS15-011 | Critical |
| 21 | Security Update for Windows 8.1 (KB3004361) | MS15-014 | Important |
| 22 | Security Update for Windows 8.1 (KB3030377) | MS15-028 | Important |
| 23 | Security Update for Windows 8.1 (KB3035126) | MS15-029 | Important |
| 24 | Security Update for Windows 8.1 (KB3042553) | MS15-034 | Critical |
| 25 | Security Update for Windows 8.1 (KB3045685) | MS15-038 | Important |
| 26 | Security Update for Windows 8.1 (KB3055642) | MS15-050 | Important |
| 27 | Security Update for Windows 8.1 (KB3059317) | MS15-060 | Important |
| 28 | Security Update for Windows 8.1 (KB3061512) | MS15-069 | Important |
| 29 | Security Update for Windows 8.1 (KB3072630) | MS15-074 | Important |
| 30 | Security Update for Windows 8.1 (KB3075220) | MS15-082 | Important |
| 31 | Security Update for Windows 8.1 (KB3076895) | MS15-084 | Important |
| 32 | Security Update for Windows 8.1 (KB3071756) | MS15-085 | Important |
| 33 | Security Update for Windows 8.1 (KB3046017) | MS15-088 | Important |
| 34 | Security Update for Windows 8.1 (KB3076949) | MS15-089 | Important |
| 35 | Security Update for Windows 8.1 (KB3084135) | MS15-102 | Important |
| 36 | Security Update for Windows 8.1 (KB3082089) | MS15-102 | Important |
| 37 | Security Update for Windows 8.1 (KB3086255) | MS15-097 | Critical |
| 38 | Security Update for Windows 8.1 (KB3092601) | MS15-119 | Important |
| 39 | Security Update for Windows 8.1 (KB3102939) | MS15-120 | Important |
| 40 | Security Update for Windows 8.1 (KB3109094) | MS15-128 | Critical |
| 41 | Security Update for Windows 8.1 (KB3108381) | MS15-132 | Important |
| 42 | Security Update for Windows 8.1 (KB3109103) | MS15-133 | Important |
| 43 | Security Update for Windows 8.1 (KB3124001) | MS16-005 | Critical |
| 44 | Security Update for Windows 8.1 (KB3121918) | MS16-007 | Important |
| 45 | Security Update for Windows 8.1 (KB3109560) | MS16-007 | Important |
| 46 | Security Update for Windows 8.1 (KB3110329) | MS16-007 | Important |
| 47 | Security Update for Windows 8.1 (KB3121461) | MS16-007 | Important |
| 48 | Security Update for Windows 8.1 (KB3121212) | MS16-008 | Important |
| 49 | Microsoft Windows Malicious Software Removal Tool (KB890830). Jan 11, 2016 | MSRT-001 | Moderate |
| 50 | Microsoft Windows Malicious Software Removal Tool (KB890830). Feb 09, 2016 | MSRT-001 | Moderate |
| 51 | Security Update for Windows 8.1 (KB3123294) | MS16-012 | Critical |
| 52 | Security Update for Windows 8.1 (KB3115858) | MS16-013 | Critical |
| 53 | Security Update for Windows 8.1 (KB3126587) | MS16-014 | Important |
| 54 | Security Update for Windows 8.1 (KB3126593) | MS16-014 | Important |
| 55 | Security Update for Windows 8.1 (KB3126434) | MS16-014 | Important |
| 56 | Security Update for Windows 8.1 (KB3126041) | MS16-014 | Important |
| 57 | Security Update for Windows 8.1 (KB3124280) | MS16-016 | Important |
| 58 | Security Update for Windows 8.1 (KB3126446) | MS16-017 | Important |
| 59 | Security Update for Windows 8.1 (KB3134214) | MS16-018 | Important |
| 60 | Security Update for Adobe Flash Player for Windows 8.1 (KB3135782) | MS16-022 | Critical |
| 61 | Security Update for Windows 8.1 (KB3140735) | MS16-026 | Critical |
| 62 | Security Update for Windows 8.1 (KB3138910) | MS16-027 | Critical |
| 63 | Security Update for Windows 8.1 (KB3138962) | MS16-027 | Critical |
| 64 | Security Update for Windows 8.1 (KB3137513) | MS16-028 | Critical |
| 65 | Security Update for Windows 8.1 (KB3139940) | MS16-030 | Important |
| 66 | Security Update for Windows 8.1 (KB3139914) | MS16-032 | Important |
| 67 | Security Update for Windows 8.1 (KB3139398) | MS16-033 | Important |
| 68 | Security Update for Windows 8.1 (KB3139852) | MS16-034 | Important |
| 69 | Microsoft Windows Malicious Software Removal Tool (KB890830). Mar 08, 2016 | MSRT-001 | Moderate |
| 70 | Security Update for Adobe Flash Player for Windows 8.1 (KB3144756) | MS16-036 | Critical |
| 71 | Security Update for Windows 8.1 (KB3145739) | MS16-039 | Critical |
| 72 | Security Update for Windows 8.1 (KB3149090) | MS16-047 | Important |
| 73 | Security Update for Windows 8.1 (KB3146723) | MS16-048 | Important |
| 74 | Security Update for Adobe Flash Player for Windows 8.1 (KB3154132) | MS16-050 | Critical |
| 75 | Microsoft Windows Malicious Software Removal Tool (KB890830). Apr 13, 2016 | MSRT-001 | Moderate |
| 76 | Security Update for Windows 8.1 (KB3146706) | MS16-044 | Important |
| 77 | Security Update for Windows 8.1 (KB3156013) | MS16-055 | Critical |
| 78 | Security Update for Windows 8.1 (KB3156016) | MS16-055 | Critical |
| 79 | Security Update for Windows 8.1 (KB3156019) | MS16-055 | Critical |
| 80 | Security Update for Windows 8.1 (KB3155178) | MS16-056 | Critical |
| 81 | Security Update for Windows 8.1 (KB3156059) | MS16-057 | Critical |
| 82 | Security Update for Windows 8.1 (KB3153704) | MS16-061 | Important |
| 83 | Security Update for Windows 8.1 (KB3153199) | MS16-062 | Important |
| 84 | Security Update for Windows 8.1 (KB3156017) | MS16-062 | Important |
| 85 | Security Update for Adobe Flash Player for Windows 8.1 (KB3157993) | MS16-064 | Critical |
| 86 | Security Update for Windows 8.1 (KB3155784) | MS16-067 | Important |
| 87 | Security Update for Windows 8.1 (KB3150220) | MS16-059 | Important |
| 88 | Security Update for Windows 8.1 (KB3153171) | MS16-060 | Important |
| 89 | Microsoft Windows Malicious Software Removal Tool (KB890830). May 11, 2016 | MSRT-001 | Moderate |
| 90 | Security Update for Adobe Flash Player for Windows 8.1 (KB3163207) | MS16-064 | Critical |
| 91 | Security Update for Windows 8.1 (KB3161664) | MS16-073 | Important |
| 92 | Security Update for Windows 8.1 (KB3159398) | MS16-072 | Important |
| 93 | Security Update for Windows 8.1 (KB3164033) | MS16-074 | Important |
| 94 | Security Update for Windows 8.1 (KB3164035) | MS16-074 | Important |
| 95 | Security Update for Windows 8.1 (KB3161561) | MS16-075 | Important |
| 96 | Security Update for Windows 8.1 (KB3161949) | MS16-077 | Important |
| 97 | Security Update for Windows 8.1 (KB3157569) | MS16-080 | Important |
| 98 | Security Update for Windows 8.1 (KB3161958) | MS16-082 | Important |
| 99 | Microsoft Windows Malicious Software Removal Tool (KB890830). Jun 14, 2016 | MSRT-001 | Moderate |
| 100 | Security Update for Adobe Flash Player for Windows 8.1 (KB3167685) | MS16-083 | Critical |
| 101 | Security Update for Windows 8.1 (KB3170455) | MS16-087 | Critical |
| 102 | Security Update for Windows 8.1 (KB3168965) | MS16-090 | Important |
| 103 | Security Update for Windows 8.1 (KB3170377) | MS16-092 | Important |
| 104 | Security Update for Windows 8.1 (KB3169704) | MS16-092 | Important |
| 105 | Security Update for Adobe Flash Player for Windows 8.1 (KB3174060) | MS16-093 | Critical |
| 106 | Security Update for Windows 8.1 (KB3172727) | MS16-094 | Important |
| 107 | Microsoft Windows Malicious Software Removal Tool (KB890830). July 14, 2016 | MSRT-001 | Moderate |
| 108 | Security Update for Windows 8.1 (KB3178034) | MS16-097 | Critical |
| 109 | Security Update for Windows 8.1 (KB3177725) | MS16-098 | Important |
| 110 | Security Update for Windows 8.1 (KB3172729) | MS16-100 | Important |
| 111 | Security Update for Windows 8.1 (KB3167679) | MS16-101 | Important |
| 112 | Security Update for Windows 8.1 (KB3177108) | MS16-101 | Important |
| 113 | Security Update for Windows 8.1 (KB3175887) | MS16-102 | Critical |
| 114 | Microsoft Windows Malicious Software Removal Tool (KB890830). Aug 10, 2016 | MSRT-001 | Moderate |
| 115 | Security Update for Windows 8.1 (KB3185911) | MS16-106 | Important |
| 116 | Security Update for Windows 8.1 (KB3184471) | MS16-110 | Important |
| 117 | Security Update for Windows 8.1 (KB3187754) | MS16-110 | Important |
| 118 | Security Update for Windows 8.1 (KB3175024) | MS16-111 | Important |
| 119 | Security Update for Windows 8.1 (KB3178539) | MS16-112 | Important |
| 120 | Security Update for Windows 8.1 (KB3177186) | MS16-114 | Important |
| 121 | Security Update for Windows 8.1 (KB3184943) | MS16-115 | Important |
| 122 | Security Update for Windows 8.1 (KB3184122) | MS16-116 | Critical |
| 123 | Security Update for Adobe Flash Player for Windows 8.1 (KB3188128) | MS16-117 | Critical |
| 124 | Microsoft Windows Malicious Software Removal Tool (KB890830). Sep 13, 2016 | MSRT-001 | Moderate |
| 125 | October, 2016 Security Only Quality Update for Windows 8.1 (KB3192392) | MS16-123 | Important |
| 126 | Security Update for Adobe Flash Player for Windows 8.1 (KB3194343) | MS16-127 | Critical |
| 127 | Microsoft Windows Malicious Software Removal Tool (KB890830).Oct 11, 2016 | MSRT-001 | Moderate |
| 128 | October, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3185331) | MS16-124 | Important |
| 129 | Security Update for Adobe Flash Player for Windows 8.1 (KB3201860) | MS16-128 | Critical |
| 130 | November, 2016 Security Only Quality Update for Windows 8.1 (KB3197873) | MS16-130 | Critical |
| 131 | November, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3197874) | MS16-130 | Critical |
| 132 | Security Update for Adobe Flash Player for Windows 8.1 (KB3202790) | MS16-141 | Critical |
| 133 | Microsoft Windows Malicious Software Removal Tool (KB890830).Nov 08, 2016 | MSRT-001 | Moderate |
| 134 | December, 2016 Security Only Quality Update for Windows 8.1 (KB3205400) | MS16-146 | Critical |
| 135 | December, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3205401) | MS16-146 | Critical |
| 136 | Security Update for Adobe Flash Player for Windows 8.1 (KB3209498) | MS16-154 | Critical |
| 137 | Microsoft Windows Malicious Software Removal Tool (KB890830).Dec 13,2016 | MSRT-001 | Moderate |
| 138 | Security Update for Adobe Flash Player for Windows 8.1 (KB3214628) | MS17-003 | Critical |
| 139 | Microsoft Windows Malicious Software Removal Tool (KB890830) Jan 10,2017 | MSRT-001 | Moderate |
| 140 | Microsoft Windows Malicious Software Removal Tool (KB890830) Feb 21,2017 | MSRT-001 | Moderate |
| 141 | Security Update for Adobe Flash Player for Windows 8.1 (KB4010250) | MS17-005 | Critical |
| 142 | Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4012204) | MS17-006 | Critical |
| 143 | Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4012204) | MS17-006 | Critical |
| 144 | March, 2017 Security Monthly Quality Rollup for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012216) | MS17-006 | Critical |
| 145 | March, 2017 Security Only Quality Update for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012213) | MS17-010 | Critical |
| 146 | Security Update for Adobe Flash Player for Windows 8.1 (KB4014329) | MS17-023 | Critical |
| 147 | Microsoft Windows Malicious Software Removal Tool (KB890830)Mar 14,2017 | MSRT-001 | Moderate |
| 148 | April, 2017 Security Monthly Quality Rollup for Windows 8.1 (KB4015550) | MS17-APR1 | Critical |
| 149 | Security Update for Adobe Flash Player for Windows 8.1 (KB4018483) | MS17-APR6 | Critical |
| 150 | April, 2017 Security Only Quality Update for Windows 8.1 (KB4015547) | MS17-APR7 | Important |
| 151 | Microsoft Windows Malicious Software Removal Tool (KB890830)APRIL 11,2017 | MSRT-001 | Moderate |
| 152 | Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4020821) | MS17-MAY5 | Critical |
| 153 | 2017-05 Security Monthly Quality Rollup Update includes WannaCrypt Fix(MS17-010) and May Month Quality Rollup for Windows 8.1 for x86-based Systems (KB4019215) | MS17-MAY6 | Important |
| 154 | 2017-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4019213) | MS17-MAY6 | Important |
| 155 | Microsoft Windows Malicious Software Removal Tool (KB890830) May 9,2017 | MSRT-001 | Moderate |
| 156 | Windows Malicious Software Removal Tool - May 2017 (KB890830) | MSRT-001 | Moderate |
| 157 | 2017-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4022726) | MS17-JUN2 | Critical |
| 158 | 2017-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4022717) | MS17-JUN2 | Critical |
| 159 | 2017-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4022730) | MS17-JUN4 | Critical |
| 160 | Windows Malicious Software Removal Tool - June 2017 (KB890830) | MSRT-001 | Moderate |
| 161 | 2017-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4025336) | MS17-JUL2 | Critical |
| 162 | 2017-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4025333) | MS17-JUL2 | Critical |
| 163 | 2017-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4025376) | MS17-JUL4 | Critical |
| 164 | Windows Malicious Software Removal Tool - July 2017 (KB890830) | MSRT-001 | Moderate |
| 165 | 2017-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4034681) | MS17-AUG1 | Critical |
| 166 | 2017-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4034672) | MS17-AUG1 | Critical |
| 167 | 2017-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4034662) | MS17-AUG3 | Critical |
| 168 | Windows Malicious Software Removal Tool - August 2017 (KB890830) | MSRT-001 | Moderate |
| 169 | 2017-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4038792) | MS17-SEP1 | Critical |
| 170 | 2017-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4038793) | MS17-SEP1 | Critical |
| 171 | Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4038806) | MS17-SEP3 | Critical |
| 172 | Windows Malicious Software Removal Tool - september 2017 (KB890830) | MSRT-001 | Moderate |
| 173 | 2017-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4041687) | MS17-OCT1 | Critical |
| 174 | 2017-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4041693) | MS17-OCT1 | Critical |
| 175 | Windows Malicious Software Removal Tool - October 2017 (KB890830) | MSRT-001 | Moderate |
| 176 | Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4049179) | MS17-OCT7 | Critical |
| 177 | 2017-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4048958) | MS17-NOV1 | Critical |
| 178 | 2017-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4048961) | MS17-NOV1 | Critical |
| 179 | 2017-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4048961) | MS17-NOV1 | Critical |
| 180 | Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4048951) | MS17-NOV4 | Critical |
| 181 | Windows Malicious Software Removal Tool - November 2017 (KB890830) | MSRT-001 | Moderate |
| 182 | 2017-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4054519) | MS17-DEC1 | Critical |
| 183 | 2017-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4054522) | MS17-DEC1 | Important |
| 184 | Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4053577) | MS17-DEC5 | Critical |
| 185 | Windows Malicious Software Removal Tool - December 2017 (KB890830) | MSRT-001 | Moderate |
| 186 | 2018-01 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056898) | MS18-JAN1 | Important |
| 187 | 2018-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056895) | MS18-JAN1 | Critical |
| 188 | Prerequisite Handler for Meltdown and Spectre | MS18-JAN5 | Critical |
| 189 | 2018-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4056887) | MS18-JAN6 | Critical |
| 190 | Windows Malicious Software Removal Tool - january 2018 (KB890830) | MSRT-001 | Moderate |
| 191 | 2018-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4074595) | MS18-FEB1 | Critical |
| 192 | 2018-02 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4074597) | MS18-FEB2 | Critical |
| 193 | 2018-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre(KB4074594) | MS18-FEB2 | Critical |
| 194 | Windows Malicious Software Removal Tool - February 2018 (KB890830) | MSRT-001 | Unrated |
| 195 | Windows Malicious Software Removal Tool - March 2018 (KB890830) | MSRT-001 | Unrated |
| 196 | Windows Malicious Software Removal Tool - April 2018 (KB890830) | MSRT-001 | Unrated |
| 197 | Windows Malicious Software Removal Tool - May 2018 (KB890830) | MSRT-001 | Unrated |
| 198 | Windows Malicious Software Removal Tool - June 2018 (KB890830) | MSRT-001 | Unrated |
| 199 | Windows Malicious Software Removal Tool - July 2018 (KB890830) | MSRT-001 | Unrated |
| 200 | Windows Malicious Software Removal Tool - August 2018 (KB890830) | MSRT-001 | Unrated |
| 201 | Windows Malicious Software Removal Tool - September 2018 (KB890830) | MSRT-001 | Unrated |
| 202 | Windows Malicious Software Removal Tool - october 2018 (KB890830) | MSRT-001 | Unrated |
| 203 | Windows Malicious Software Removal Tool - November 2018 (KB890830) | MSRT-001 | Unrated |
| 204 | Windows Malicious Software Removal Tool - December 2018 (KB890830) | MSRT-001 | Unrated |
| 205 | Prerequisite Handler for Meltdown and Spectre | MS18-JAN5 | Critical |
| 206 | Prerequisite Handler for Meltdown and Spectre | MS18-JAN5 | Critical |
| 207 | 2018-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4088785) | MS18-MAR1 | Critical |
| 208 | 2018-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4088876) | MS18-MAR2 | Important |
| 209 | 2018-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4088879) | MS18-MAR2 | Important |
| 210 | 2018-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4093115) | MS18-APR2 | Critical |
| 211 | 2018-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4093110) | MS18-APR1 | Critical |
| 212 | 2018-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4093114) | MS18-APR7 | Critical |
| 213 | 2018-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4103729) | MS18-MAY1 | Critical |
| 214 | Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4103768) | MS18-MAY5 | Critical |
| 215 | 2018-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4103715) | MS18-MAY2 | Critical |
| 216 | 2018-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4103725) | MS18-MAY6 | Critical |
| 217 | 2018-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4287903) | MS18-JUN1 | Critical |
| 218 | 2018-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4284878) | MS18-JUN2 | Critical |
| 219 | 2018-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4284815) | MS18-JUN6 | Critical |
| 220 | 2018-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4338832) | MS18-JULY1 | Critical |
| 221 | 2018-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4338824) | MS18-JULY2 | Important |
| 222 | 2018-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4338815) | MS18-JULY6 | Important |
| 223 | 2018-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4343902) | MS18-AUG1 | Critical |
| 224 | 2018-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4343888) | MS18-AUG2 | Critical |
| 225 | 2018-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4343898) | MS18-AUG6 | Critical |
| 226 | 2018-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4457146) | MS18-SEP1 | Critical |
| 227 | 2018-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4457143) | MS18-SEP2 | Critical |
| 228 | 2018-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4457129) | MS18-SEP6 | Critical |
| 229 | 2018-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4462941) | MS18-OCT2 | Critical |
| 230 | 2018-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4462926) | MS18-OCT6 | Critical |
| 231 | 2018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4467694) | MS18-NOV1 | Critical |
| 232 | 2018-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4467703) | MS18-NOV2 | Critical |
| 233 | 2018-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4467697) | MS18-NOV6 | Critical |
| 234 | 2018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4477029) | MS18-NOV12 | Critical |
| 235 | 2018-12 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4471331) | MS18-DEC1 | Critical |
| 236 | 2018-12 Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows 8.1 (KB4470639) | MS18-DEC8 | Important |
| 237 | KB4471989 - Security and Quality Rollup for .NET Framework 3.5 for Windows 8.1 (KB4470630) | MS18-DEC8 | Important |
| 238 | 2018-12 Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1 (KB4470622) | MS18-DEC8 | Important |
| 239 | 2018-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4471322) | MS18-DEC2 | Critical |
| 240 | 2018-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4471320) | MS18-DEC6 | Critical |
| 241 | Windows Malicious Software Removal Tool - January 2019 (KB890830) | MSRT-001 | Unrated |
| 242 | 2019-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4480979) | MS19-JAN1 | Critical |
| 243 | 2019-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4480964) | MS19-JAN2 | Important |
| 244 | 2019-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4480963) | MS19-JAN6 | Important |
| 245 | 2019-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4487038) | MS19-FEB1 | Critical |
| 246 | 2019-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4487028) | MS19-FEB2 | Critical |
| 247 | 2019-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4487000) | MS19-FEB6 | Critical |
| 248 | Windows Malicious Software Removal Tool - February 2019 (KB890830) | MSRT-001 | Moderate |
| 249 | 2019-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4489907) | MS19-MAR1 | Critical |
| 250 | 2019-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4489883) | MS19-MAR2 | Critical |
| 251 | 2019-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4489881) | MS19-MAR6 | Critical |
| 252 | Windows Malicious Software Removal Tool - March 2019 (KB890830) | MSRT-001 | Moderate |
| 253 | 2019-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4493478) | MS19-APR1 | Critical |
| 254 | 2019-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4493467) | MS19-APR2 | Critical |
| 255 | 2019-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4493446) | MS19-APR6 | Critical |
| 256 | Windows Malicious Software Removal Tool - April 2019 (KB890830) | MSRT-001 | Moderate |
| 257 | 2019-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4497932) | MS19-MAY1 | Critical |
| 258 | 2019-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4499165) | MS19-MAY2 | Critical |
| 259 | 2019-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4499151) | MS19-MAY6 | Critical |
| 260 | Windows Malicious Software Removal Tool - May 2019 (KB890830) | MSRT-001 | Moderate |
| 261 | 2019-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4503308) | MS19-JUN1 | Critical |
| 262 | 2019-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4503290) | MS19-JUN2 | Critical |
| 263 | 2019-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4503276) | MS19-JUN6 | Critical |
| 264 | Windows Malicious Software Removal Tool - June 2019 (KB890830) | MSRT-001 | Moderate |
| 265 | Windows Malicious Software Removal Tool x64 - June 2019 (KB890830) | MSRT-001 | Moderate |
| 266 | 2019-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4507457) (CVE-2019-0880) | MS19-JUL2 | Critical |
| 267 | 2019-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4507448) (CVE-2019-0880) | MS19-JUL6 | Critical |
| 268 | 2019-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4504418) | MS19-JUL12 | Critical |
| 269 | Windows Malicious Software Removal Tool - July 2019 (KB890830) | MSRT-001 | Moderate |
| 270 | Windows Malicious Software Removal Tool x64 - July 2019 (KB890830) | MSRT-001 | Moderate |
| 271 | 2019-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4512489) | MS19-AUG2 | Critical |
| 272 | 2019-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4512488) | MS19-AUG6 | Critical |
| 273 | Windows Malicious Software Removal Tool - August 2019 (KB890830) | MSRT-001 | Moderate |
| 274 | Windows Malicious Software Removal Tool x64 - August 2019 (KB890830) | MSRT-001 | Moderate |
| 275 | 2019-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4516064) | MS19-SEP2 | Critical |
| 276 | 2019-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4516115) | MS19-SEP1 | Critical |
| 277 | 2019-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4516067) | MS19-SEP6 | Critical |
| 278 | 2019-09 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4512938) | MS19-SEP12 | Critical |
| 279 | 2019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4524156) | MS19-OCT14 | Critical |
| 280 | 2019-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4519990) | MS19-OCT2 | Critical |
| 281 | 2019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4520005) | MS19-OCT6 | Critical |
| 282 | 2019-10 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4521864) | MS19-OCT15 | Critical |
| 283 | Windows Malicious Software Removal Tool - October 2019 (KB890830) | MSRT-001 | Moderate |
| 284 | Windows Malicious Software Removal Tool x64 - October 2019 (KB890830) | MSRT-001 | Moderate |
| 285 | 2019-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4525243) | MS19-NOV6 | Critical |
| 286 | 2019-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4525250) | MS19-NOV2 | Critical |
| 287 | Windows Malicious Software Removal Tool x64 - November 2019 (KB890830) | MSRT-001 | Moderate |
| 288 | Windows Malicious Software Removal Tool - November 2019 (KB890830) | MSRT-001 | Moderate |
| 289 | 2019-11 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4524445) | MS19-NOV12 | Critical |
| 290 | 2019-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4530730) | MS19-DEC2 | Critical |
| 291 | 2019-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4530702) | MS19-DEC6 | Critical |
| 292 | Windows Malicious Software Removal Tool x64 - December 2019 (KB890830) | MSRT-001 | Moderate |
| 293 | Windows Malicious Software Removal Tool - December 2019 (KB890830) | MSRT-001 | Moderate |
| 294 | Windows Malicious Software Removal Tool x64 - January 2020 (KB890830) | MSRT-001 | Moderate |
| 295 | 2020-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4534309) | MS20-JAN2 | Critical |
| 296 | 2020-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4534297) | MS20-JAN6 | Critical |
| 297 | 2020-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4537759) | MS20-FEB1 | Critical |
| 298 | 2020-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4537821) | MS20-FEB6 | Critical |
| 299 | 2020-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4537803) | MS20-FEB2 | Critical |
| 300 | 2020-02 Security Update for Windows 8.1 for x86-based Systems (KB4502496) | MS20-FEB8 | Critical |
| 301 | Windows Malicious Software Removal Tool x64 - February 2020 (KB890830) | MSRT-001 | Moderate |
| 302 | Windows Malicious Software Removal Tool x64 - March 2020 (KB890830) | MSRT-001 | Moderate |
| 303 | 2020-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4541505) | MS20-MAR2 | Critical |
| 304 | 2020-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4541509) | MS20-MAR6 | Critical |
| 305 | 2020-03 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4540725) | MS20-MAR12 | Critical |
| 306 | Workaround for Font Parsing Remote Code Execution Vulnerability | MS20-MAR25 | Critical |
| 307 | Patch for Undoing the changes of Workaround for Font Parsing Remote Code Execution Vulnerability | MS20-MAR25 | Critical |
| 308 | 2020-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4550970) | MS20-APR2 | Critical |
| 309 | 2020-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4550961) | MS20-APR6 | Critical |
| 310 | 2020-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4556853) | MS20-MAY2 | Critical |
| 311 | 2020-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4556846) | MS20-MAY6 | Critical |
| 312 | 2020-05 Update for Windows 8.1 for x86-based Systems (KB4557900) | MS20-MAY13 | Low |
| 313 | Windows Malicious Software Removal Tool x64 - May 2020 (KB890830) | MSRT-001 | Moderate |
| 314 | 2020-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4561673) | MS20-JUN2 | Critical |
| 315 | 2020-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4561666) | MS20-JUN6 | Critical |
| 316 | 2020-06 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4562253) | MS20-JUN12 | Critical |
| 317 | 2020-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4561600) | MS20-JUN1 | Critical |
| 318 | 2020-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4565540,KB4569509) (CVE-2020-1350) | MS20-JUL2 | Critical |
| 319 | 2020-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4565541,KB4569509) (CVE-2020-1350) | MS20-JUL6 | Critical |
| 320 | 2020-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4566425) | MS20-JUL12 | Critical |
| 321 | 2020-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4571723) (CVE-2020-1464) (CVE-2020-1472) | MS20-AUG2 | Critical |
| 322 | 2020-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4571703) (CVE-2020-1464) (CVE-2020-1380) (CVE-2020-1472) | MS20-AUG6 | Critical |
| 323 | 2020-08 Security Update for Windows 8.1 for x86-based Systems (KB4578013) | MS20-AUG16 | Critical |
| 324 | 2020-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4577071) | MS20-SEP2 | Critical |
| 325 | 2020-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4577066) | MS20-SEP6 | Critical |
| 326 | 2020-09 Update for Windows 8.1 for x86-based Systems (KB4566371) | MS20-SEP16 | Low |
| 327 | Windows Malicious Software Removal Tool x64 - September 2020 (KB890830) | MSRT-001 | Moderate |
| 328 | 2020-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4580358) | MS20-OCT2 | Critical |
| 329 | 2020-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4580347) | MS20-OCT6 | Critical |
| 330 | 2020-10 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4580325) | MS20-OCT1 | Critical |
| 331 | 2020-10 Update for Windows 8.1 for x86-based Systems (KB4578623) | MS20-OCT13 | Low |
| 332 | 2020-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4586823) (CVE-2020-17087) | MS20-NOV2 | Critical |
| 333 | 2020-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4586845) (CVE-2020-17087) | MS20-NOV6 | Critical |
| 334 | Windows Malicious Software Removal Tool x64 - November 2020 (KB890830) | MSRT-001 | Moderate |
| 335 | 2020-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4592495) | MS20-DEC2 | Important |
| 336 | 2020-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4592484) | MS20-DEC6 | Important |
| 337 | 2021-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4598275) | MS21-JAN2 | Critical |
| 338 | 2021-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4598285) | MS21-JAN6 | Critical |
| 339 | Windows Malicious Software Removal Tool x64 - January 2021 (KB890830) | MSRT-001 | Moderate |
| 340 | 2021-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4601349) | MS21-FEB2 | Critical |
| 341 | 2021-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4601384) | MS21-FEB6 | Critical |
| 342 | Windows Malicious Software Removal Tool x64 - February 2021 (KB890830) | MSRT-001 | Moderate |
| 343 | 2021-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5000853) (CVE-2021-27077) | MS21-MAR2 | Critical |
| 344 | 2021-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5000848) (CVE-2021-27077) (CVE-2021-26411) | MS21-MAR6 | Critical |
| 345 | Windows Malicious Software Removal Tool x64 - March 2021 (KB890830) | MSRT-001 | Moderate |
| 346 | 2021-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5001393) (CVE-2021-28437) (CVE-2021-27091) | MS21-APR2 | Critical |
| 347 | 2021-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5001382) (CVE-2021-28437) | MS21-APR6 | Critical |
| 348 | 2021-04 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB5001403) | MS21-APR12 | Critical |
| 349 | 2021-04 Update for Windows 8.1 for x86-based Systems (KB4601275) | MS21-APR13 | Low |
| 350 | Windows Malicious Software Removal Tool x64 - April 2021 (KB890830) | MSRT-001 | Moderate |
| 351 | 2021-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003220) | MS21-MAY2 | Critical |
| 352 | 2021-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5003209) | MS21-MAY6 | Critical |
| 353 | Windows Malicious Software Removal Tool x64 - May 2021 (KB890830) | MSRT-001 | Moderate |
| 354 | 2021-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003681) | MS21-JUN2 | Critical |
| 355 | 2021-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5003671) | MS21-JUN6 | Critical |
| 356 | Windows Malicious Software Removal Tool x64 - June 2021 (KB890830) | MSRT-001 | Moderate |
| 357 | 2021-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5004958) (CVE-2021-34527) | MS21-JUL12 | Critical |
| 358 | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5004954) (CVE-2021-34527) | MS21-JUL14 | Critical |
| 359 | 2021-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5004285) | MS21-JUL2 | Critical |
| 360 | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5004298) | MS21-JUL6 | Critical |
| 361 | Windows Malicious Software Removal Tool x64 - July 2021 (KB890830) | MSRT-001 | Moderate |
| 362 | 2021-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5005106) (CVE-2021-36936) (CVE-2021-36942) | MS21-AUG2 | Critical |
| 363 | 2021-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5005076) (CVE-2021-36936) (CVE-2021-36942) | MS21-AUG6 | Critical |
| 364 | Windows Malicious Software Removal Tool x64 - August 2021 (KB890830) | MSRT-001 | Moderate |
| 365 | 2021-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5005627) (CVE-2021-40444) | MS21-SEP2 | Critical |
| 366 | 2021-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5005613) (CVE-2021-40444) | MS21-SEP6 | Critical |
| 367 | Windows Malicious Software Removal Tool x64 - September 2021 (KB890830) | MSRT-001 | Moderate |
| 368 | 2021-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5006729) (CVE-2021-40449) (CVE-2021-40469) (CVE-2021-41335) (CVE-2021-41338) | MS21-OCT2 | Important |
| 369 | 2021-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5006714) (CVE-2021-40449) (CVE-2021-40469) (CVE-2021-41335) (CVE-2021-41338) | MS21-OCT6 | Important |
| 370 | Windows Malicious Software Removal Tool x64 - October 2021 (KB890830) | MSRT-001 | Moderate |
| 371 | 2021-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5007255) (CVE-2021-41371) (CVE-2021-38631) | MS21-NOV2 | Critical |
| 372 | 2021-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5007247) (CVE-2021-41371) (CVE-2021-38631) | MS21-NOV6 | Critical |
| 373 | Windows Malicious Software Removal Tool x64 - November 2021 (KB890830) | MSRT-001 | Moderate |
| 374 | 2021-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5008285) (CVE-2021-41333) (CVE-2021-43883) (CVE-2021-43893) | MS21-DEC2 | Critical |
| 375 | 2021-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5008263) (CVE-2021-41333) (CVE-2021-43883) (CVE-2021-43893) | MS21-DEC6 | Critical |
| 376 | Windows Malicious Software Removal Tool x64 - December 2021 (KB890830) | MSRT-001 | Moderate |
| 377 | 2022-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5009595) (CVE-2022-21919) (CVE-2022-21836) | MS22-JAN2 | Critical |
| 378 | 2022-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5009624) (CVE-2022-21919) (CVE-2022-21836) | MS22-JAN6 | Critical |
| 379 | Windows Malicious Software Removal Tool x64 - January 2022 (KB890830) | MSRT-001 | Moderate |
| 380 | 2022-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5010395) (CVE-2022-21989) | MS22-FEB2 | Important |
| 381 | 2022-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5010419) (CVE-2022-21989) | MS22-FEB6 | Important |
| 382 | Windows Malicious Software Removal Tool x64 - February 2022 (KB890830) | MSRT-001 | Moderate |
| 383 | 2022-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5011560) (CVE-2022-21990) (CVE-2022-24459) | MS22-MAR2 | Important |
| 384 | 2022-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5011564) (CVE-2022-21990) (CVE-2022-24459) | MS22-MAR6 | Important |
| 385 | Windows Malicious Software Removal Tool x64 - March 2022 (KB890830) | MSRT-001 | Moderate |
| 386 | 2022-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5012639) (CVE-2022-26904) (CVE-2022-24521) | MS22-APR2 | Critical |
| 387 | 2022-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5012670) (CVE-2022-26904) (CVE-2022-24521) | MS22-APR6 | Critical |
| 388 | 2022-04 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB5012672) | MS22-APR12 | Critical |
| 389 | Windows Malicious Software Removal Tool x64 - April 2022 (KB890830) | MSRT-001 | Moderate |
| 390 | 2022-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5014001) (CVE-2022-26925) | MS22-MAY2 | Critical |
| 391 | 2022-05 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB5014025) | MS22-MAY12 | Critical |
| 392 | 2022-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5014011) (CVE-2022-26925) | MS22-MAY6 | Critical |
| 393 | Windows Malicious Software Removal Tool x64 - May 2022 (KB890830) | MSRT-001 | Moderate |
| 394 | 2022-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5014746) (CVE-2022-30190) | MS22-JUN2 | Critical |
| 395 | 2022-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5014738) (CVE-2022-30190) | MS22-JUN6 | Critical |
| 396 | Windows Malicious Software Removal Tool x64 - June 2022 (KB890830) | MSRT-001 | Moderate |
| 397 | Update for Windows 8.1 (KB2898742) | MSWU-711 | Unrated |
| 398 | Update for Windows 8.1 (KB2883200) | MSWU-712 | Unrated |
| 399 | Update for Windows 8.1 (KB2894029) | MSWU-712 | Unrated |
| 400 | Update for Windows 8.1 (KB2894179) | MSWU-712 | Unrated |
| 401 | Update for Windows 8.1 (KB2887595) | MSWU-730 | Unrated |
| 402 | Update for Windows 8.1 (KB2898514) | MSWU-730 | Unrated |
| 403 | Update for Windows 8.1 (KB2901101) | MSWU-730 | Unrated |
| 404 | Update for Windows 8.1 (KB2906956) | MSWU-730 | Unrated |
| 405 | Update for Windows 8.1 (KB2908174) | MSWU-730 | Unrated |
| 406 | Security Update for Windows 8.1 (KB2862152) | MSWU-731 | Unrated |
| 407 | Update for Windows 8.1 (KB2913236) | MSWU-732 | Unrated |
| 408 | Update for Microsoft Camera Codec Pack for Windows 8.1 (KB2899189) | MSWU-736 | Unrated |
| 409 | Update for Windows 8.1 (KB2903939) | MSWU-739 | Unrated |
| 410 | Update for Windows 8.1 (KB2911134) | MSWU-739 | Unrated |
| 411 | Update for Windows 8.1 for x64-based Systems (KB2903939) | MSWU-739 | Unrated |
| 412 | Update for Windows 8.1 (KB2919394) | MSWU-790 | Unrated |
| 413 | Update for Windows 8.1 (KB2928680) | MSWU-818 | Unrated |
| 414 | Update for Windows 8.1 (KB2935295) | MSWU-818 | Unrated |
| 415 | Update for Windows 8.1 (KB2939087) | MSWU-827 | Unrated |
| 416 | Security Update for Windows 8.1 (KB2962140) | MSWU-856 | Unrated |
| 417 | Update for Microsoft .NET Native for Windows 8.1 (KB2954879) | MSWU-860 | Unrated |
| 418 | Update for Windows 8.1 (KB2962409) | MSWU-906 | Unrated |
| 419 | Update for Windows 8.1 (KB2938066) | MSWU-928 | Unrated |
| 420 | Update for Windows 8.1 (KB2967917) | MSWU-953 | Unrated |
| 421 | Update for Windows 8.1 (KB2975061) | MSWU-963 | Unrated |
| 422 | Security Update for Windows 8.1 (KB2973351) | MSWU-967 | Low |
| 423 | Update for Windows 8.1 (KB2980654) | MSWU-976 | Unrated |
| 424 | Update for Windows 8.1 (KB2990532) | MSWU-995 | Unrated |
| 425 | Update for Windows 8.1 (KB2979500) | MSWU-999 | Unrated |
| 426 | Update rollup for Windows RT 8.1 (2979582) | MSWU-995 | Unrated |
| 427 | Update for Windows 8.1 (2993100) | MSWU-995 | Unrated |
| 428 | Update for Windows 8.1 (KB2994897) | MSWU-1038 | Unrated |
| 429 | Update for Windows 8.1 (KB2995004) | MSWU-1038 | Unrated |
| 430 | Update for Windows 8.1 (KB2990967) | MSWU-1044 | Unrated |
| 431 | Update for Windows 8.1 (KB2996799-v2) | MSWU-1050 | Unrated |
| 432 | Security Update for Windows 8.1 (KB2977292) | MSWU-1054 | Critical |
| 433 | Update for Windows 8.1 (KB3000850) | MSWU-1113 | Unrated |
| 434 | Update for Windows 8.1 (KB3014442) | MSWU-1113 | Unrated |
| 435 | Update for Windows 8.1 (KB2989930) | MSWU-1117 | Unrated |
| 436 | Update for Windows 8.1 (KB2994290) | MSWU-1118 | Unrated |
| 437 | Update for Windows 8.1 (KB3013769) | MSWU-1126 | Unrated |
| 438 | Update for Windows 8.1 (KB3013816) | MSWU-1127 | Unrated |
| 439 | Update for Windows 8.1 (KB3008242) | MSWU-1143 | Unrated |
| 440 | Update for Windows 8.1 (KB3012235) | MSWU-1218 | Unrated |
| 441 | Update for Windows 8.1 (KB3012702) | MSWU-1219 | Unrated |
| 442 | Update for Windows 8.1 (KB3013172) | MSWU-1220 | Unrated |
| 443 | Update for Windows 8.1 (KB3018133) | MSWU-1221 | Unrated |
| 444 | Update for Windows 8.1 (KB3024751) | MSWU-1223 | Unrated |
| 445 | Update for Windows 8.1 (KB3024755) | MSWU-1224 | Unrated |
| 446 | Update for Windows 8.1 (KB3027209) | MSWU-1226 | Unrated |
| 447 | Update for Windows 8.1 (KB3029606) | MSWU-1227 | Unrated |
| 448 | Update for Windows 8.1 (KB3030947) | MSWU-1228 | Unrated |
| 449 | Update for Windows 8.1 (KB3036612) | MSWU-1235 | Unrated |
| 450 | Update for Windows 8.1 (KB3042085) | MSWU-1269 | Unrated |
| 451 | Security Update for Windows 8.1 (KB3045755) | MSWU-1270 | Critical |
| 452 | Update for Windows 8.1 (KB3044374) | MSWU-1306 | Unrated |
| 453 | Update for Windows 8.1 (KB3013531) | MSWU-1309 | Unrated |
| 454 | Update for Windows 8.1 (KB3013538) | MSWU-1310 | Unrated |
| 455 | Update for Windows 8.1 (KB3015696) | MSWU-1311 | Unrated |
| 456 | Update for Windows 8.1 (KB3020370) | MSWU-1312 | Unrated |
| 457 | Update for Windows 8.1 (KB3033446) | MSWU-1314 | Unrated |
| 458 | Update for Windows 8.1 (KB3037924) | MSWU-1315 | Unrated |
| 459 | Update for Windows 8.1 (KB3038002) | MSWU-1316 | Unrated |
| 460 | Update for Windows 8.1 (KB3044673) | MSWU-1320 | Unrated |
| 461 | Update for Windows 8.1 (KB3045717) | MSWU-1321 | Unrated |
| 462 | Update for Windows 8.1 (KB3045719) | MSWU-1322 | Unrated |
| 463 | Update for Windows 8.1 (KB3045992) | MSWU-1323 | Unrated |
| 464 | Update for Windows 8.1 (KB3046737) | MSWU-1324 | Unrated |
| 465 | Update for Windows 8.1 (KB3047254) | MSWU-1325 | Unrated |
| 466 | Update for Windows 8.1 (KB3054169) | MSWU-1331 | Unrated |
| 467 | Update for Windows 8.1 (KB3046480) | MSWU-1336 | Unrated |
| 468 | Update for Windows 8.1 (KB3048043) | MSWU-1337 | Unrated |
| 469 | Update for Windows 8.1 (KB3029432) | MSWU-1375 | Unrated |
| 470 | Update for Windows 8.1 (KB3029603) | MSWU-1376 | Unrated |
| 471 | Update for Windows 8.1 (KB3041857) | MSWU-1380 | Unrated |
| 472 | Update for Windows 8.1 (KB3045634) | MSWU-1381 | Unrated |
| 473 | Update for Windows 8.1 (KB3045746) | MSWU-1382 | Unrated |
| 474 | Update for Windows 8.1 (KB3054464) | MSWU-1383 | Unrated |
| 475 | Update for Windows 8.1 (KB3055323) | MSWU-1385 | Unrated |
| 476 | Security Update for Windows 8.1 (KB3062760) | MSWU-1390 | Low |
| 477 | Update for Windows 8.1 (KB3013791) | MSWU-1423 | Unrated |
| 478 | Update for Windows 8.1 (KB3064209) | MSWU-1428 | Unrated |
| 479 | Update for Windows 8.1 (KB3064059) | MSWU-1429 | Unrated |
| 480 | Update for Windows 8.1 (KB3063843) | MSWU-1430 | Unrated |
| 481 | Update for Windows 8.1 (KB3053863) | MSWU-1432 | Unrated |
| 482 | Update for Windows 8.1 (KB3060793) | MSWU-1436 | Unrated |
| 483 | Update for Windows 8.1 (KB3054256) | MSWU-1440 | Unrated |
| 484 | Update for Windows 8.1 (KB3056347) | MSWU-1441 | Unrated |
| 485 | Update for Windows 8.1 (KB3059316) | MSWU-1445 | Unrated |
| 486 | Update for Windows 8.1 (KB3061493) | MSWU-1482 | Unrated |
| 487 | Update for Windows 8.1 (KB3072019) | MSWU-1487 | Unrated |
| 488 | Update for Windows 8.1 (KB3055343) | MSWU-1488 | Unrated |
| 489 | Update for Windows 8.1 (KB3038936) | MSWU-1491 | Unrated |
| 490 | Update for Windows 8.1 (KB3052480) | MSWU-1513 | Unrated |
| 491 | Update for Windows 8.1 (KB3078676) | MSWU-1519 | Unrated |
| 492 | Update for Windows 8.1 (KB3079318) | MSWU-1520 | Unrated |
| 493 | Update for Windows 8.1 (KB3080149) | MSWU-1522 | Unrated |
| 494 | Update for Windows 7 for x64-based Systems (KB3080149) | MSWU-1522 | Unrated |
| 495 | Update for Windows 8.1 (KB3092627) | MSWU-1523 | Unrated |
| 496 | Update for Windows 8.1 (KB3080042) | MSWU-1558 | Unrated |
| 497 | Update for Windows 8.1 (KB3080800) | MSWU-1560 | Unrated |
| 498 | Update for Windows 8.1 (KB3084905) | MSWU-1563 | Unrated |
| 499 | Update for Windows 8.1 (KB3087041) | MSWU-1564 | Unrated |
| 500 | Update for Windows 8.1 (KB3087137) | MSWU-1565 | Unrated |
| 501 | Update for Windows 8.1 (KB3087390) | MSWU-1566 | Unrated |
| 502 | Security Update for Windows 8.1 (KB3042058) | MSWU-1579 | Critical |
| 503 | Update for Windows 8.1 (KB3034348) | MSWU-1615 | Unrated |
| 504 | Update for Windows 8.1 (KB3091297) | MSWU-1619 | Unrated |
| 505 | Update for Windows 8.1 (KB3095701) | MSWU-1623 | Unrated |
| 506 | Update for Windows 8.1 (KB3096433) | MSWU-1624 | Unrated |
| 507 | Update for Windows 8.1 (KB3078405) | MSWU-1646 | Unrated |
| 508 | Update for Windows 8.1 (KB3099834) | MSWU-1649 | Unrated |
| 509 | Update for Windows 8.1 (KB3100956) | MSWU-1651 | Unrated |
| 510 | Update for Windows 8.1 (KB3102429) | MSWU-1653 | Unrated |
| 511 | Update for Windows 8.1 (KB3103696) | MSWU-1654 | Unrated |
| 512 | Security Update for Windows 8.1 (KB3109853) | MSWU-1709 | Low |
| 513 | Security Update for Windows 8.1 (KB3123479) | MSWU-1710 | Low |
| 514 | Update for Windows 8.1 (KB3135449) | MSWU-1738 | Unrated |
| 515 | Update for Windows 8.1 (KB3132080) | MSWU-1761 | Unrated |
| 516 | Update for Windows 8.1 (KB3103699) | MSWU-1778 | Unrated |
| 517 | Update for Windows 8.1 (KB3106637) | MSWU-1779 | Unrated |
| 518 | Update for Windows 8.1 (KB3118401) | MSWU-1780 | Unrated |
| 519 | Update for Windows 8.1 (KB3121255) | MSWU-1781 | Unrated |
| 520 | Update for Windows 8.1 (KB3121260) | MSWU-1782 | Unrated |
| 521 | Update for Windows 8.1 (KB3121261) | MSWU-1783 | Unrated |
| 522 | Update for Windows 8.1 (KB3123242) | MSWU-1784 | Unrated |
| 523 | Update for Windows 8.1 (KB3125210) | MSWU-1787 | Unrated |
| 524 | Update for Windows 8.1 (KB3126030) | MSWU-1788 | Unrated |
| 525 | Update for Windows 8.1 (KB3126033) | MSWU-1789 | Unrated |
| 526 | Update for Windows 8.1 (KB3128650) | MSWU-1791 | Unrated |
| 527 | Update for Windows 8.1 (KB3130896) | MSWU-1792 | Unrated |
| 528 | Update for Windows 8.1 (KB3133924) | MSWU-1798 | Unrated |
| 529 | Update for Windows 8.1 (KB3134812) | MSWU-1800 | Unrated |
| 530 | Update for Windows 8.1 (KB3134815) | MSWU-1802 | Unrated |
| 531 | Update for Windows 8.1 (KB3138615) | MSWU-1807 | Unrated |
| 532 | Update for Windows 8.1 (KB3139921) | MSWU-1810 | Unrated |
| 533 | Update for Windows 8.1 (KB3100473) | MSWU-1842 | Unrated |
| 534 | Update for Windows 8.1 (KB3105115) | MSWU-1843 | Unrated |
| 535 | Update for Windows 8.1 (KB3109976) | MSWU-1845 | Unrated |
| 536 | Update for Windows 8.1 (KB3133681) | MSWU-1848 | Unrated |
| 537 | Update for Windows 8.1 (KB3134785) | MSWU-1852 | Unrated |
| 538 | Update for Windows 8.1 (KB3136019) | MSWU-1853 | Unrated |
| 539 | Update for Windows 8.1 (KB3137061) | MSWU-1854 | Unrated |
| 540 | Update for Windows 8.1 (KB3137725) | MSWU-1856 | Unrated |
| 541 | Update for Windows 8.1 (KB3137728) | MSWU-1858 | Unrated |
| 542 | Update for Windows 8.1 (KB3138602) | MSWU-1861 | Unrated |
| 543 | Update for Windows 8.1 (KB3139165) | MSWU-1866 | Unrated |
| 544 | Update for Windows 8.1 (KB3139219) | MSWU-1867 | Unrated |
| 545 | Update for Windows 8.1 (KB3139923) | MSWU-1870 | Unrated |
| 546 | Update for Windows 8.1 (KB3140185) | MSWU-1871 | Unrated |
| 547 | Update for Windows 8.1 (KB3140219) | MSWU-1872 | Unrated |
| 548 | Update for Windows 8.1 (KB3140222) | MSWU-1873 | Unrated |
| 549 | Update for Windows 8.1 (KB3140234) | MSWU-1874 | Unrated |
| 550 | Update for Windows 8.1 (KB3140250) | MSWU-1875 | Unrated |
| 551 | Update for Windows 8.1 (KB3140786) | MSWU-1876 | Unrated |
| 552 | Update for Windows 8.1 (KB3141074) | MSWU-1878 | Unrated |
| 553 | Update for Windows 8.1 (KB3115224) | MSWU-1880 | Unrated |
| 554 | Update for Windows 8.1 (KB3147071) | MSWU-1916 | Unrated |
| 555 | Update for Windows 8.1 (KB3148851) | MSWU-1919 | Unrated |
| 556 | Security Update for Windows 8.1 (KB3151058) | MSWU-1950 | Critical |
| 557 | Update for Windows 8.1 (KB3153731) | MSWU-1952 | Unrated |
| 558 | Update for Windows 8.1 (KB3156418) | MSWU-1957 | Unrated |
| 559 | Update for Windows 8.1 (KB3162835) | MSWU-1992 | Unrated |
| 560 | Update for Windows 8.1 (KB3161606) | MSWU-1993 | Unrated |
| 561 | Update for Windows 8.1 (KB3170735) | MSWU-2030 | Unrated |
| 562 | Update for Windows 8.1 (KB3173424) | MSWU-2031 | Unrated |
| 563 | Update for Windows 8.1 (KB2976978) | MSWU-2037 | Unrated |
| 564 | Update for Windows 8.1 (KB3172614) | MSWU-2039 | Unrated |
| 565 | Update for Windows 8.1 (KB3138378) | MSWU-2042 | Unrated |
| 566 | Update for Windows 8.1 (KB3161102) | MSWU-2043 | Unrated |
| 567 | Update for Windows 8.1 (KB3179574) | MSWU-2079 | Unrated |
| 568 | Update for Windows 8.1 (KB3177723) | MSWU-2081 | Unrated |
| 569 | Update for Windows 8.1 (KB3103709) | MSWU-2084 | Unrated |
| 570 | Update for Windows 8.1 (KB3103616) | MSWU-2111 | Unrated |
| 571 | Update for Windows 8.1 (KB3125424) | MSWU-2112 | Unrated |
| 572 | Update for Windows 8.1 (KB3145384) | MSWU-2113 | Unrated |
| 573 | Update for Windows 8.1 (KB3146604) | MSWU-2114 | Unrated |
| 574 | Update for Windows 8.1 (KB3146751) | MSWU-2115 | Unrated |
| 575 | Update for Windows 8.1 (KB3149157) | MSWU-2116 | Unrated |
| 576 | Update for Windows 8.1 (KB3150513) | MSWU-2117 | Unrated |
| 577 | Security Update for Windows 8.1 (KB3174644) | MSWU-2119 | Critical |
| 578 | Update for Windows 8.1 (KB3187022) | MSWU-2126 | Unrated |
| 579 | Update for Windows 8.1 (KB3182203) | MSWU-2133 | Unrated |
| 580 | Update for Windows 8.1 (KB3185279) | MSWU-2136 | Unrated |
| 581 | Reliability Rollup for Microsoft .NET Framework 4.5.2 on Windows 8.1 (KB3186208) | MSWU-2138 | Unrated |
| 582 | Reliability Rollup for Microsoft .NET Framework 4.6 and 4.6.1 on Windows 8.1 (KB3186208) | MSWU-2138 | Unrated |
| 583 | Update for Internet Explorer 11 for Windows 8.1 (KB3192665) | MSWU-2143 | Unrated |
| 584 | Update for Windows 8.1 (KB2976978) | MSWU-2037 | Unrated |
| 585 | October, 2016 Preview of Monthly Quality Rollup for Windows 8.1 (KB3192404) | MSWU-2165 | Unrated |
| 586 | Update for Internet Explorer 11 for Windows 8.1 (KB3200006) | MSWU-2171 | Unrated |
| 587 | Update for Windows 7 (KB3192321) | MSWU-2166 | Unrated |
| 588 | Update for Windows 8.1 (KB3192321) | MSWU-2166 | Unrated |
| 589 | Update for Windows 8.1 (KB2976978) | MSWU-2198 | Unrated |
| 590 | November 2016 Preview of Monthly Quality Rollup for Windows 8.1 (KB3197875) | MSWU-2214 | Unrated |
| 591 | Update for Windows 8.1 (KB3203884) | MSWU-2261 | Unrated |
| 592 | Update for Windows 8.1 V21 (KB2976978) | MSWU-2198 | Unrated |
| 593 | Update for Windows 8.1 for x64-based Systems V21 (KB2976978) | MSWU-2198 | Unrated |
| 594 | Update for Windows 8.1 (KB4012864) | MSWU-2357 | Unrated |
| 595 | Preview of Monthly Quality Rollup for Windows 8.1 (KB4012219) | MSWU-2355 | Unrated |
| 596 | Update for Windows 8.1 (KB4016754) | MSWU-2367 | Unrated |
| 597 | Update for Windows 8.1 (KB4015193) | MSWU-2402 | Unrated |
| 598 | April, 2017 Preview of Monthly Quality Rollup for Windows 8.1 (KB4015553) | MSWU-2404 | Unrated |
| 599 | 2017-05 Preview of Monthly Quality Rollup Update includes WannaCrypt Fix(MS17-010) and May Month Quality Rollup for Windows 8.1 for x86-based Systems (KB4019217) | MSWU-2463 | Unrated |
| 600 | Update and 404 Error While Printing a Frame Fix for Internet Explorer 11 for Windows 8.1 (KB4032782) | MSWU-2507 | Unrated |
| 601 | 2017-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4022720)- Petya ransomware attack (CVE-2017-0199) | MSWU-2514 | Unrated |
| 602 | Update for Windows 8.1 (KB4020322) | MSWU-2548 | Unrated |
| 603 | 2017-07 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4025335) | MSWU-2585 | Unrated |
| 604 | 2017-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4025335) | MSWU-2585 | Unrated |
| 605 | 2017-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4034663) | MSWU-2599 | Unrated |
| 606 | 2017-08 Update for Windows 8.1 for x86-based Systems (KB4039871) | MSWU-2609 | Unrated |
| 607 | 2017-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4038774) | MSWU-2670 | Unrated |
| 608 | 2017-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4041685) | MSWU-2700 | Unrated |
| 609 | Update for Adobe Flash Player for Windows 8.1 (KB4051613) | MSWU-2708 | Unrated |
| 610 | 2017-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4050946) | MSWU-2761 | Unrated |
| 611 | Update for Windows 8.1 (KB4049068) | MSWU-2763 | Unrated |
| 612 | 2017-11 Update for Windows 8.1 for x86-based Systems (KB4055038) | MSWU-2764 | Unrated |
| 613 | Update for Windows 8.1 (KB4051956) | MSWU-2799 | Unrated |
| 614 | 2018-01 Update for Windows 8.1 for x86-based Systems (KB4073576) | MSWU-2803 | Unrated |
| 615 | 2018-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4057401) | MSWU-2804 | Unrated |
| 616 | Update to Disable Mitigation against Spectre, Variant 2 (KB4078130) | MSWU-2817 | Unrated |
| 617 | Update for Windows 8.1 (KB4074837) | MSWU-2833 | Unrated |
| 618 | 2018-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4075212) | MSWU-2843 | Unrated |
| 619 | Disable Windows Automatic Update | MSWU-2853 | Unrated |
| 620 | 2018-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4088882) | MSWU-2867 | Unrated |
| 621 | 2018-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4093121) | MSWU-2887 | Unrated |
| 622 | Update for Windows 8.1 (KB4093753) | MSWU-2888 | Unrated |
| 623 | 2018-05 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4103724) | MSWU-2917 | Unrated |
| 624 | Update for Windows 8.1 (KB4130978) | MSWU-2921 | Unrated |
| 625 | 2018-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4284863) | MSWU-2946 | Unrated |
| 626 | 2018-07 Update for Windows 8.1 for x86-based Systems (KB4345424) | MSWU-2961 | Unrated |
| 627 | 2018-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4338831) | MSWU-2971 | Unrated |
| 628 | Update for Windows 8.1 (KB4339284) | MSWU-2973 | Unrated |
| 629 | 2018-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4343891) | MSWU-3007 | Unrated |
| 630 | Fix Component Store Corruption | MSWU-3025 | Unrated |
| 631 | 2018-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4457133) | MSWU-3036 | Unrated |
| 632 | Update for Adobe Flash Player for Windows 8.1 (KB4462930) | MSWU-3044 | Unrated |
| 633 | Update for Windows 8.1 (KB4462901) | MSWU-3047 | Unrated |
| 634 | 2018-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4462921) | MSWU-3048 | Unrated |
| 635 | Update for Windows 8.1 (KB4468323) | MSWU-3076 | Unrated |
| 636 | 2018-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4467695) | MSWU-3077 | Unrated |
| 637 | 2019-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4480969) | MSWU-3117 | Unrated |
| 638 | Update for Windows Management Framework 5.1 for Windows 8.1 (KB3191564) | MSWU-3156 | Unrated |
| 639 | 2019-02 Update for Windows 8.1 for x86-based Systems (KB4486459) | MSWU-3166 | Unrated |
| 640 | 2019-02 Update for Windows 8.1 for x86-based Systems (KB4491113) | MSWU-3168 | Unrated |
| 641 | 2019-02 Update for Windows 8.1 for x86-based Systems (KB4490512) | MSWU-3170 | Unrated |
| 642 | 2019-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4487016) | MSWU-3176 | Unrated |
| 643 | 2019-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4489893) | MSWU-3215 | Unrated |
| 644 | 2019-03 Update for Windows 8.1 for x86-based Systems (KB4490128) | MSWU-3234 | Unrated |
| 645 | Sophos Antivirus Detector | MSWU-3242 | Unrated |
| 646 | 2019-04 Update for Windows 8.1 for x86-based Systems (KB4496878) | MSWU-3250 | Unrated |
| 647 | 2019-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4493443) | MSWU-3245 | Unrated |
| 648 | 2019-05 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4499182) | MSWU-3274 | Unrated |
| 649 | 2019-05 Update for Windows 8.1 for x86-based Systems (KB4501226) | MSWU-3277 | Unrated |
| 650 | 2019-05 Update for Windows 8.1 for x86-based Systems (KB4505050) | MSWU-3282 | Unrated |
| 651 | 2019-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4503283) | MSWU-3298 | Unrated |
| 652 | 2019-06 Update for Windows 8.1 for x86-based Systems (KB4508773) | MSWU-3300 | Unrated |
| 653 | 2019-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4507463) | MSWU-3306 | Unrated |
| 654 | 2019-07 Update for Windows 8.1 for x86-based Systems (KB4507704) | MSWU-3307 | Unrated |
| 655 | 2019-07 Update for Internet Explorer 11 for Windows 8.1 for x86-based Systems (KB4510979) | MSWU-3308 | Unrated |
| 656 | 2019-08 Update for Windows 8.1 for x86-based Systems (KB4517298) | MSWU-3322 | Unrated |
| 657 | 2019-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4512478) | MSWU-3323 | Unrated |
| 658 | 2019-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4516041) | MSWU-3332 | Unrated |
| 659 | 2019-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4520012) | MSWU-3342 | Unrated |
| 660 | 2019-10 Update for Windows 8.1 for x86-based Systems (KB4519108) | MSWU-3344 | Unrated |
| 661 | 2019-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4525252) | MSWU-3350 | Unrated |
| 662 | 2020-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4534324) | MSWU-3360 | Unrated |
| 663 | 2020-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4537819) | MSWU-3369 | Unrated |
| 664 | Disable Check For Updates | MSWU-2853 | Unrated |
| 665 | Enable Windows Automatic Update | MSWU-2853 | Unrated |
| 666 | Enable Check For Updates | MSWU-2853 | Unrated |
| 667 | 2020-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4541334) | MSWU-3377 | Unrated |
| 668 | 2020-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4550958) | MSWU-3384 | Unrated |
| 669 | 2020-06 Update for Windows 8.1 for x86-based Systems (KB4567521) | MSWU-3393 | Unrated |
| 670 | Update for Removal of Adobe Flash Player for Windows 8.1 for x86-based systems (KB4577586) | MSWU-3420 | Unrated |
| 671 | 2020-11 Update for Windows 8.1 for x86-based Systems (KB4594439) | MSWU-3422 | Unrated |
| 672 | 2021-03 Update for Windows 8.1 for x86-based Systems (KB5001640) | MSWU-3436 | Unrated |
| 673 | 2021-07 Update for Windows 8.1 for x86-based Systems (KB5005391) | MSWU-3451 | Unrated |
| 674 | 2021-11 Update for Windows 8.1 for x86-based Systems (KB5008603) | MSWU-3466 | Unrated |
| 675 | log-4j mitigation helper | MSWU-3475 | Unrated |
| 676 | 2022-01 Update for Windows 8.1 for x86-based Systems (KB5010215) | MSWU-3479 | Unrated |
| 677 | 2022-01 Update for Windows 8.1 for x86-based Systems (KB5010794) | MSWU-3483 | Unrated |
| 678 | 2022-05 Update for Windows 8.1 for x86-based Systems (KB5014986) | MSWU-3500 | Unrated |
Latest Security Patches
Microsoft Security Bulletins
Microsoft Products
Third Party Products
MAC Products