Patch Repository

Windows 8.1 Enterprise Edition Patches
S.No Patch Description Bulletin id Severity
1Cumulative Security Update for ActiveX Killbits for windows 8.1 (KB2900986)MS13-090Critical
2Windows 8.1 Update 1 for (KB2919355)MS14-018Critical
3Windows 8.1 Update (KB2932046)MS14-018Critical
4Windows 8.1 Update (KB2934018)MS14-018Critical
5Windows 8.1 Update (KB2937592)MS14-018Critical
6Windows 8.1 Update (KB2938439)MS14-018Critical
7Security Update for Windows 8.1 (KB2928120)MS14-025Important
8Security Update for Windows 8.1 (KB2961899) without KB2919355MS14-025Important
9Security Update for Windows 8.1 (KB2957189)MS14-031Important
10Security Update for Windows 8.1 (KB2978742)MS14-043Critical
11Security Update for Windows 8.1 (KB2993651)MS14-045Important
12Security Update for Windows 8.1 (KB3010788)MS14-064Important
13Security Update for Windows 8.1 (KB3003743)MS14-074Important
14Security Update for Windows 8.1 (KB2982998)MS14-076Important
15Security Update for Windows 8.1 (KB3020393)MS15-002Critical
16Security Update for Windows 8.1 (KB3021674)MS15-003Important
17Security Update for Windows 8.1 (KB3019978)MS15-004Important
18Security Update for Windows 8.1 (KB3022777)MS15-005Important
19Security Update for Windows 8.1 (KB3004365)MS15-006Important
20Security Update for Windows 8.1 (KB3000483)MS15-011Critical
21Security Update for Windows 8.1 (KB3004361)MS15-014Important
22Security Update for Windows 8.1 (KB3030377)MS15-028Important
23Security Update for Windows 8.1 (KB3035126)MS15-029Important
24Security Update for Windows 8.1 (KB3042553)MS15-034Critical
25Security Update for Windows 8.1 (KB3045685)MS15-038Important
26Security Update for Windows 8.1 (KB3055642)MS15-050Important
27Security Update for Windows 8.1 (KB3059317)MS15-060Important
28Security Update for Windows 8.1 (KB3061512)MS15-069Important
29Security Update for Windows 8.1 (KB3072630)MS15-074Important
30Security Update for Windows 8.1 (KB3075220)MS15-082Important
31Security Update for Windows 8.1 (KB3076895)MS15-084Important
32Security Update for Windows 8.1 (KB3071756)MS15-085Important
33Security Update for Windows 8.1 (KB3046017)MS15-088Important
34Security Update for Windows 8.1 (KB3076949)MS15-089Important
35Security Update for Windows 8.1 (KB3084135)MS15-102Important
36Security Update for Windows 8.1 (KB3082089)MS15-102Important
37Security Update for Windows 8.1 (KB3086255)MS15-097Critical
38Security Update for Windows 8.1 (KB3092601)MS15-119Important
39Security Update for Windows 8.1 (KB3102939)MS15-120Important
40Security Update for Windows 8.1 (KB3109094)MS15-128Critical
41Security Update for Windows 8.1 (KB3108381)MS15-132Important
42Security Update for Windows 8.1 (KB3109103)MS15-133Important
43Security Update for Windows 8.1 (KB3124001)MS16-005Critical
44Security Update for Windows 8.1 (KB3121918)MS16-007Important
45Security Update for Windows 8.1 (KB3109560)MS16-007Important
46Security Update for Windows 8.1 (KB3110329)MS16-007Important
47Security Update for Windows 8.1 (KB3121461)MS16-007Important
48Security Update for Windows 8.1 (KB3121212)MS16-008Important
49Microsoft Windows Malicious Software Removal Tool (KB890830). Jan 11, 2016MSRT-001Moderate
50Microsoft Windows Malicious Software Removal Tool (KB890830). Feb 09, 2016MSRT-001Moderate
51Security Update for Windows 8.1 (KB3123294)MS16-012Critical
52Security Update for Windows 8.1 (KB3115858)MS16-013Critical
53Security Update for Windows 8.1 (KB3126587)MS16-014Important
54Security Update for Windows 8.1 (KB3126593)MS16-014Important
55Security Update for Windows 8.1 (KB3126434)MS16-014Important
56Security Update for Windows 8.1 (KB3126041)MS16-014Important
57Security Update for Windows 8.1 (KB3124280)MS16-016Important
58Security Update for Windows 8.1 (KB3126446)MS16-017Important
59Security Update for Windows 8.1 (KB3134214)MS16-018Important
60Security Update for Adobe Flash Player for Windows 8.1 (KB3135782)MS16-022Critical
61Security Update for Windows 8.1 (KB3140735)MS16-026Critical
62Security Update for Windows 8.1 (KB3138910)MS16-027Critical
63Security Update for Windows 8.1 (KB3138962)MS16-027Critical
64Security Update for Windows 8.1 (KB3137513)MS16-028Critical
65Security Update for Windows 8.1 (KB3139940)MS16-030Important
66Security Update for Windows 8.1 (KB3139914)MS16-032Important
67Security Update for Windows 8.1 (KB3139398)MS16-033Important
68Security Update for Windows 8.1 (KB3139852)MS16-034Important
69Microsoft Windows Malicious Software Removal Tool (KB890830). Mar 08, 2016MSRT-001Moderate
70Security Update for Adobe Flash Player for Windows 8.1 (KB3144756)MS16-036Critical
71Security Update for Windows 8.1 (KB3145739)MS16-039Critical
72Security Update for Windows 8.1 (KB3149090)MS16-047Important
73Security Update for Windows 8.1 (KB3146723)MS16-048Important
74Security Update for Adobe Flash Player for Windows 8.1 (KB3154132)MS16-050Critical
75Microsoft Windows Malicious Software Removal Tool (KB890830). Apr 13, 2016MSRT-001Moderate
76Security Update for Windows 8.1 (KB3146706)MS16-044Important
77Security Update for Windows 8.1 (KB3156013)MS16-055Critical
78Security Update for Windows 8.1 (KB3156016)MS16-055Critical
79Security Update for Windows 8.1 (KB3156019)MS16-055Critical
80Security Update for Windows 8.1 (KB3155178)MS16-056Critical
81Security Update for Windows 8.1 (KB3156059)MS16-057Critical
82Security Update for Windows 8.1 (KB3153704)MS16-061Important
83Security Update for Windows 8.1 (KB3153199)MS16-062Important
84Security Update for Windows 8.1 (KB3156017)MS16-062Important
85Security Update for Adobe Flash Player for Windows 8.1 (KB3157993)MS16-064Critical
86Security Update for Windows 8.1 (KB3155784)MS16-067Important
87Security Update for Windows 8.1 (KB3150220)MS16-059Important
88Security Update for Windows 8.1 (KB3153171)MS16-060Important
89Microsoft Windows Malicious Software Removal Tool (KB890830). May 11, 2016MSRT-001Moderate
90Security Update for Adobe Flash Player for Windows 8.1 (KB3163207)MS16-064Critical
91Security Update for Windows 8.1 (KB3161664)MS16-073Important
92Security Update for Windows 8.1 (KB3159398)MS16-072Important
93Security Update for Windows 8.1 (KB3164033)MS16-074Important
94Security Update for Windows 8.1 (KB3164035)MS16-074Important
95Security Update for Windows 8.1 (KB3161561)MS16-075Important
96Security Update for Windows 8.1 (KB3161949)MS16-077Important
97Security Update for Windows 8.1 (KB3157569)MS16-080Important
98Security Update for Windows 8.1 (KB3161958)MS16-082Important
99Microsoft Windows Malicious Software Removal Tool (KB890830). Jun 14, 2016MSRT-001Moderate
100Security Update for Adobe Flash Player for Windows 8.1 (KB3167685)MS16-083Critical
101Security Update for Windows 8.1 (KB3170455)MS16-087Critical
102Security Update for Windows 8.1 (KB3168965)MS16-090Important
103Security Update for Windows 8.1 (KB3170377)MS16-092Important
104Security Update for Windows 8.1 (KB3169704)MS16-092Important
105Security Update for Adobe Flash Player for Windows 8.1 (KB3174060)MS16-093Critical
106Security Update for Windows 8.1 (KB3172727)MS16-094Important
107Microsoft Windows Malicious Software Removal Tool (KB890830). July 14, 2016MSRT-001Moderate
108Security Update for Windows 8.1 (KB3178034)MS16-097Critical
109Security Update for Windows 8.1 (KB3177725)MS16-098Important
110Security Update for Windows 8.1 (KB3172729)MS16-100Important
111Security Update for Windows 8.1 (KB3167679)MS16-101Important
112Security Update for Windows 8.1 (KB3177108)MS16-101Important
113Security Update for Windows 8.1 (KB3175887)MS16-102Critical
114Microsoft Windows Malicious Software Removal Tool (KB890830). Aug 10, 2016MSRT-001Moderate
115Security Update for Windows 8.1 (KB3185911)MS16-106Important
116Security Update for Windows 8.1 (KB3184471)MS16-110Important
117Security Update for Windows 8.1 (KB3187754)MS16-110Important
118Security Update for Windows 8.1 (KB3175024)MS16-111Important
119Security Update for Windows 8.1 (KB3178539)MS16-112Important
120Security Update for Windows 8.1 (KB3177186)MS16-114Important
121Security Update for Windows 8.1 (KB3184943)MS16-115Important
122Security Update for Windows 8.1 (KB3184122)MS16-116Critical
123Security Update for Adobe Flash Player for Windows 8.1 (KB3188128)MS16-117Critical
124Microsoft Windows Malicious Software Removal Tool (KB890830). Sep 13, 2016MSRT-001Moderate
125October, 2016 Security Only Quality Update for Windows 8.1 (KB3192392)MS16-123Important
126Security Update for Adobe Flash Player for Windows 8.1 (KB3194343)MS16-127Critical
127Microsoft Windows Malicious Software Removal Tool (KB890830).Oct 11, 2016MSRT-001Moderate
128October, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3185331)MS16-124Important
129Security Update for Adobe Flash Player for Windows 8.1 (KB3201860)MS16-128Critical
130November, 2016 Security Only Quality Update for Windows 8.1 (KB3197873)MS16-130Critical
131November, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3197874)MS16-130Critical
132Security Update for Adobe Flash Player for Windows 8.1 (KB3202790)MS16-141Critical
133Microsoft Windows Malicious Software Removal Tool (KB890830).Nov 08, 2016MSRT-001Moderate
134December, 2016 Security Only Quality Update for Windows 8.1 (KB3205400)MS16-146Critical
135December, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3205401)MS16-146Critical
136Security Update for Adobe Flash Player for Windows 8.1 (KB3209498)MS16-154Critical
137Microsoft Windows Malicious Software Removal Tool (KB890830).Dec 13,2016MSRT-001Moderate
138Security Update for Adobe Flash Player for Windows 8.1 (KB3214628)MS17-003Critical
139Microsoft Windows Malicious Software Removal Tool (KB890830) Jan 10,2017MSRT-001Moderate
140Microsoft Windows Malicious Software Removal Tool (KB890830) Feb 21,2017MSRT-001Moderate
141Security Update for Adobe Flash Player for Windows 8.1 (KB4010250)MS17-005Critical
142Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4012204)MS17-006Critical
143Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4012204)MS17-006Critical
144March, 2017 Security Monthly Quality Rollup for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012216)MS17-006Critical
145March, 2017 Security Only Quality Update for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012213)MS17-010Critical
146Security Update for Adobe Flash Player for Windows 8.1 (KB4014329)MS17-023Critical
147Microsoft Windows Malicious Software Removal Tool (KB890830)Mar 14,2017MSRT-001Moderate
148April, 2017 Security Monthly Quality Rollup for Windows 8.1 (KB4015550)MS17-APR1Critical
149Security Update for Adobe Flash Player for Windows 8.1 (KB4018483)MS17-APR6Critical
150April, 2017 Security Only Quality Update for Windows 8.1 (KB4015547)MS17-APR7Important
151Microsoft Windows Malicious Software Removal Tool (KB890830)APRIL 11,2017MSRT-001Moderate
152Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4020821)MS17-MAY5Critical
1532017-05 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-MAY6Important
1542017-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4019213)MS17-MAY6Important
155Microsoft Windows Malicious Software Removal Tool (KB890830) May 9,2017MSRT-001Moderate
156Windows Malicious Software Removal Tool - May 2017 (KB890830)MSRT-001Moderate
1572017-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4022726)MS17-JUN2Critical
1582017-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4022717)MS17-JUN2Critical
1592017-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4022730)MS17-JUN4Critical
160Windows Malicious Software Removal Tool - June 2017 (KB890830)MSRT-001Moderate
1612017-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4025336)MS17-JUL2Critical
1622017-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4025333)MS17-JUL2Critical
1632017-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4025376)MS17-JUL4Critical
164Windows Malicious Software Removal Tool - July 2017 (KB890830)MSRT-001Moderate
1652017-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4034681)MS17-AUG1Critical
1662017-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4034672)MS17-AUG1Critical
1672017-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4034662)MS17-AUG3Critical
168Windows Malicious Software Removal Tool - August 2017 (KB890830)MSRT-001Moderate
1692017-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4038792)MS17-SEP1Critical
1702017-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4038793)MS17-SEP1Critical
171Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4038806)MS17-SEP3Critical
172Windows Malicious Software Removal Tool - september 2017 (KB890830)MSRT-001Moderate
1732017-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4041687)MS17-OCT1Critical
1742017-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4041693)MS17-OCT1Critical
175Windows Malicious Software Removal Tool - October 2017 (KB890830)MSRT-001Moderate
176Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4049179)MS17-OCT7Critical
1772017-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4048958)MS17-NOV1Critical
1782017-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4048961)MS17-NOV1Critical
1792017-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4048961)MS17-NOV1Critical
180Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4048951)MS17-NOV4Critical
181Windows Malicious Software Removal Tool - November 2017 (KB890830)MSRT-001Moderate
1822017-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4054519)MS17-DEC1Critical
1832017-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4054522)MS17-DEC1Important
184Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4053577)MS17-DEC5Critical
185Windows Malicious Software Removal Tool - December 2017 (KB890830)MSRT-001Moderate
1862018-01 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056898)MS18-JAN1Important
1872018-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056895)MS18-JAN1Critical
188Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
1892018-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4056887)MS18-JAN6Critical
190Windows Malicious Software Removal Tool - january 2018 (KB890830)MSRT-001Moderate
1912018-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4074595)MS18-FEB1Critical
1922018-02 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4074597)MS18-FEB2Critical
1932018-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre(KB4074594)MS18-FEB2Critical
194Windows Malicious Software Removal Tool - February 2018 (KB890830)MSRT-001Unrated
195Windows Malicious Software Removal Tool - March 2018 (KB890830)MSRT-001Unrated
196Windows Malicious Software Removal Tool - April 2018 (KB890830)MSRT-001Unrated
197Windows Malicious Software Removal Tool - May 2018 (KB890830)MSRT-001Unrated
198Windows Malicious Software Removal Tool - June 2018 (KB890830)MSRT-001Unrated
199Windows Malicious Software Removal Tool - July 2018 (KB890830)MSRT-001Unrated
200Windows Malicious Software Removal Tool - August 2018 (KB890830)MSRT-001Unrated
201Windows Malicious Software Removal Tool - September 2018 (KB890830)MSRT-001Unrated
202Windows Malicious Software Removal Tool - october 2018 (KB890830)MSRT-001Unrated
203Windows Malicious Software Removal Tool - November 2018 (KB890830)MSRT-001Unrated
204Windows Malicious Software Removal Tool - December 2018 (KB890830)MSRT-001Unrated
205Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
206Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
2072018-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4088785)MS18-MAR1Critical
2082018-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4088876)MS18-MAR2Important
2092018-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4088879)MS18-MAR2Important
2102018-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4093115)MS18-APR2Critical
2112018-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4093110)MS18-APR1Critical
2122018-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4093114) MS18-APR7Critical
2132018-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4103729)MS18-MAY1Critical
214Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4103768)MS18-MAY5Critical
2152018-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4103715)MS18-MAY2Critical
2162018-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4103725)MS18-MAY6Critical
2172018-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4287903)MS18-JUN1Critical
2182018-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4284878)MS18-JUN2Critical
2192018-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4284815)MS18-JUN6Critical
2202018-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4338832)MS18-JULY1Critical
2212018-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4338824)MS18-JULY2Important
2222018-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4338815)MS18-JULY6Important
2232018-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4343902)MS18-AUG1Critical
2242018-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4343888)MS18-AUG2Critical
2252018-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4343898)MS18-AUG6Critical
2262018-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4457146)MS18-SEP1Critical
2272018-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4457143)MS18-SEP2Critical
2282018-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4457129)MS18-SEP6Critical
2292018-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4462941)MS18-OCT2Critical
2302018-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4462926)MS18-OCT6Critical
2312018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4467694)MS18-NOV1Critical
2322018-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4467703)MS18-NOV2Critical
2332018-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4467697)MS18-NOV6Critical
2342018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4477029)MS18-NOV12Critical
2352018-12 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4471331)MS18-DEC1Critical
2362018-12 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-DEC8Important
237KB4471989 - Security and Quality Rollup for .NET Framework 3.5 for Windows 8.1 (KB4470630)MS18-DEC8Important
2382018-12 Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1 (KB4470622)MS18-DEC8Important
2392018-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4471322)MS18-DEC2Critical
2402018-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4471320)MS18-DEC6Critical
241Windows Malicious Software Removal Tool - January 2019 (KB890830)MSRT-001Unrated
2422019-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4480979)MS19-JAN1Critical
2432019-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4480964)MS19-JAN2Important
2442019-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4480963)MS19-JAN6Important
2452019-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4487038)MS19-FEB1Critical
2462019-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4487028)MS19-FEB2Critical
2472019-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4487000)MS19-FEB6Critical
248Windows Malicious Software Removal Tool - February 2019 (KB890830)MSRT-001Moderate
2492019-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4489907)MS19-MAR1Critical
2502019-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4489883)MS19-MAR2Critical
2512019-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4489881)MS19-MAR6Critical
252Windows Malicious Software Removal Tool - March 2019 (KB890830)MSRT-001Moderate
2532019-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4493478)MS19-APR1Critical
2542019-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4493467)MS19-APR2Critical
2552019-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4493446)MS19-APR6Critical
256Windows Malicious Software Removal Tool - April 2019 (KB890830)MSRT-001Moderate
2572019-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4497932)MS19-MAY1Critical
2582019-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4499165)MS19-MAY2Critical
2592019-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4499151)MS19-MAY6Critical
260Windows Malicious Software Removal Tool - May 2019 (KB890830)MSRT-001Moderate
2612019-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4503308)MS19-JUN1Critical
2622019-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4503290)MS19-JUN2Critical
2632019-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4503276)MS19-JUN6Critical
264Windows Malicious Software Removal Tool - June 2019 (KB890830)MSRT-001Moderate
265Windows Malicious Software Removal Tool x64 - June 2019 (KB890830)MSRT-001Moderate
2662019-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4507457) (CVE-2019-0880)MS19-JUL2Critical
2672019-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4507448) (CVE-2019-0880)MS19-JUL6Critical
2682019-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4504418)MS19-JUL12Critical
269Windows Malicious Software Removal Tool - July 2019 (KB890830)MSRT-001Moderate
270Windows Malicious Software Removal Tool x64 - July 2019 (KB890830)MSRT-001Moderate
2712019-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4512489)MS19-AUG2Critical
2722019-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4512488)MS19-AUG6Critical
273Windows Malicious Software Removal Tool - August 2019 (KB890830)MSRT-001Moderate
274Windows Malicious Software Removal Tool x64 - August 2019 (KB890830)MSRT-001Moderate
2752019-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4516064)MS19-SEP2Critical
2762019-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4516115)MS19-SEP1Critical
2772019-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4516067)MS19-SEP6Critical
2782019-09 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4512938)MS19-SEP12Critical
2792019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4524156)MS19-OCT14Critical
2802019-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4519990)MS19-OCT2Critical
2812019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4520005)MS19-OCT6Critical
2822019-10 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4521864)MS19-OCT15Critical
283Windows Malicious Software Removal Tool - October 2019 (KB890830)MSRT-001Moderate
284Windows Malicious Software Removal Tool x64 - October 2019 (KB890830)MSRT-001Moderate
2852019-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4525243)MS19-NOV6Critical
2862019-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4525250)MS19-NOV2Critical
287Windows Malicious Software Removal Tool x64 - November 2019 (KB890830)MSRT-001Moderate
288Windows Malicious Software Removal Tool - November 2019 (KB890830)MSRT-001Moderate
2892019-11 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4524445)MS19-NOV12Critical
2902019-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4530730)MS19-DEC2Critical
2912019-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4530702)MS19-DEC6Critical
292Windows Malicious Software Removal Tool x64 - December 2019 (KB890830)MSRT-001Moderate
293Windows Malicious Software Removal Tool - December 2019 (KB890830)MSRT-001Moderate
294Windows Malicious Software Removal Tool x64 - January 2020 (KB890830)MSRT-001Moderate
2952020-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4534309)MS20-JAN2Critical
2962020-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4534297)MS20-JAN6Critical
2972020-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4537759)MS20-FEB1Critical
2982020-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4537821)MS20-FEB6Critical
2992020-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4537803)MS20-FEB2Critical
3002020-02 Security Update for Windows 8.1 for x86-based Systems (KB4502496)MS20-FEB8Critical
301Windows Malicious Software Removal Tool x64 - February 2020 (KB890830)MSRT-001Moderate
302Windows Malicious Software Removal Tool x64 - March 2020 (KB890830)MSRT-001Moderate
3032020-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4541505)MS20-MAR2Critical
3042020-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4541509)MS20-MAR6Critical
3052020-03 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4540725)MS20-MAR12Critical
306Workaround for Font Parsing Remote Code Execution VulnerabilityMS20-MAR25Critical
307Patch for Undoing the changes of Workaround for Font Parsing Remote Code Execution VulnerabilityMS20-MAR25Critical
3082020-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4550970)MS20-APR2Critical
3092020-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4550961)MS20-APR6Critical
3102020-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4556853)MS20-MAY2Critical
3112020-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4556846)MS20-MAY6Critical
3122020-05 Update for Windows 8.1 for x86-based Systems (KB4557900)MS20-MAY13Low
313Windows Malicious Software Removal Tool x64 - May 2020 (KB890830)MSRT-001Moderate
3142020-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4561673)MS20-JUN2Critical
3152020-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4561666)MS20-JUN6Critical
3162020-06 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4562253)MS20-JUN12Critical
3172020-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4561600)MS20-JUN1Critical
3182020-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4565540,KB4569509) (CVE-2020-1350)MS20-JUL2Critical
3192020-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4565541,KB4569509) (CVE-2020-1350)MS20-JUL6Critical
3202020-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4566425)MS20-JUL12Critical
3212020-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4571723) (CVE-2020-1464) (CVE-2020-1472)MS20-AUG2Critical
3222020-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4571703) (CVE-2020-1464) (CVE-2020-1380) (CVE-2020-1472)MS20-AUG6Critical
3232020-08 Security Update for Windows 8.1 for x86-based Systems (KB4578013)MS20-AUG16Critical
3242020-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4577071)MS20-SEP2Critical
3252020-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4577066)MS20-SEP6Critical
3262020-09 Update for Windows 8.1 for x86-based Systems (KB4566371)MS20-SEP16Low
327Windows Malicious Software Removal Tool x64 - September 2020 (KB890830)MSRT-001Moderate
3282020-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4580358)MS20-OCT2Critical
3292020-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4580347)MS20-OCT6Critical
3302020-10 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4580325)MS20-OCT1Critical
3312020-10 Update for Windows 8.1 for x86-based Systems (KB4578623)MS20-OCT13Low
3322020-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4586823) (CVE-2020-17087)MS20-NOV2Critical
3332020-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4586845) (CVE-2020-17087)MS20-NOV6Critical
334Windows Malicious Software Removal Tool x64 - November 2020 (KB890830)MSRT-001Moderate
3352020-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4592495)MS20-DEC2Important
3362020-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4592484)MS20-DEC6Important
3372021-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4598275)MS21-JAN2Critical
3382021-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4598285)MS21-JAN6Critical
339Windows Malicious Software Removal Tool x64 - January 2021 (KB890830)MSRT-001Moderate
3402021-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4601349)MS21-FEB2Critical
3412021-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4601384)MS21-FEB6Critical
342Windows Malicious Software Removal Tool x64 - February 2021 (KB890830)MSRT-001Moderate
3432021-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5000853) (CVE-2021-27077)MS21-MAR2Critical
3442021-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5000848) (CVE-2021-27077) (CVE-2021-26411)MS21-MAR6Critical
345Windows Malicious Software Removal Tool x64 - March 2021 (KB890830)MSRT-001Moderate
3462021-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5001393) (CVE-2021-28437) (CVE-2021-27091)MS21-APR2Critical
3472021-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5001382) (CVE-2021-28437)MS21-APR6Critical
3482021-04 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB5001403)MS21-APR12Critical
3492021-04 Update for Windows 8.1 for x86-based Systems (KB4601275)MS21-APR13Low
350Windows Malicious Software Removal Tool x64 - April 2021 (KB890830)MSRT-001Moderate
3512021-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003220)MS21-MAY2Critical
3522021-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5003209)MS21-MAY6Critical
353Windows Malicious Software Removal Tool x64 - May 2021 (KB890830)MSRT-001Moderate
3542021-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003681)MS21-JUN2Critical
3552021-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5003671)MS21-JUN6Critical
356Windows Malicious Software Removal Tool x64 - June 2021 (KB890830)MSRT-001Moderate
3572021-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5004958) (CVE-2021-34527)MS21-JUL12Critical
3582021-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5004954) (CVE-2021-34527)MS21-JUL14Critical
3592021-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5004285)MS21-JUL2Critical
3602021-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5004298)MS21-JUL6Critical
361Windows Malicious Software Removal Tool x64 - July 2021 (KB890830)MSRT-001Moderate
3622021-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5005106) (CVE-2021-36936) (CVE-2021-36942)MS21-AUG2Critical
3632021-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5005076) (CVE-2021-36936) (CVE-2021-36942)MS21-AUG6Critical
364Windows Malicious Software Removal Tool x64 - August 2021 (KB890830)MSRT-001Moderate
3652021-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5005627) (CVE-2021-40444)MS21-SEP2Critical
3662021-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5005613) (CVE-2021-40444)MS21-SEP6Critical
367Windows Malicious Software Removal Tool x64 - September 2021 (KB890830)MSRT-001Moderate
3682021-10 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-OCT2Important
3692021-10 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-OCT6Important
370Windows Malicious Software Removal Tool x64 - October 2021 (KB890830)MSRT-001Moderate
371Update for Windows 8.1 (KB2898742)MSWU-711Unrated
372Update for Windows 8.1 (KB2883200)MSWU-712Unrated
373Update for Windows 8.1 (KB2894029)MSWU-712Unrated
374Update for Windows 8.1 (KB2894179)MSWU-712Unrated
375Update for Windows 8.1 (KB2887595)MSWU-730Unrated
376Update for Windows 8.1 (KB2898514)MSWU-730Unrated
377Update for Windows 8.1 (KB2901101)MSWU-730Unrated
378Update for Windows 8.1 (KB2906956)MSWU-730Unrated
379Update for Windows 8.1 (KB2908174)MSWU-730Unrated
380Security Update for Windows 8.1 (KB2862152)MSWU-731Unrated
381Update for Windows 8.1 (KB2913236)MSWU-732Unrated
382Update for Microsoft Camera Codec Pack for Windows 8.1 (KB2899189)MSWU-736Unrated
383Update for Windows 8.1 (KB2903939)MSWU-739Unrated
384Update for Windows 8.1 (KB2911134)MSWU-739Unrated
385Update for Windows 8.1 for x64-based Systems (KB2903939)MSWU-739Unrated
386Update for Windows 8.1 (KB2919394)MSWU-790Unrated
387Update for Windows 8.1 (KB2928680)MSWU-818Unrated
388Update for Windows 8.1 (KB2935295)MSWU-818Unrated
389Update for Windows 8.1 (KB2939087)MSWU-827Unrated
390Security Update for Windows 8.1 (KB2962140)MSWU-856Unrated
391Update for Microsoft .NET Native for Windows 8.1 (KB2954879)MSWU-860Unrated
392 Update for Windows 8.1 (KB2962409)MSWU-906Unrated
393Update for Windows 8.1 (KB2938066)MSWU-928Unrated
394Update for Windows 8.1 (KB2967917)MSWU-953Unrated
395Update for Windows 8.1 (KB2975061)MSWU-963Unrated
396Security Update for Windows 8.1 (KB2973351)MSWU-967Low
397Update for Windows 8.1 (KB2980654)MSWU-976Unrated
398Update for Windows 8.1 (KB2990532)MSWU-995Unrated
399Update for Windows 8.1 (KB2979500)MSWU-999Unrated
400Update rollup for Windows RT 8.1 (2979582)MSWU-995Unrated
401Update for Windows 8.1 (2993100)MSWU-995Unrated
402Update for Windows 8.1 (KB2994897)MSWU-1038Unrated
403Update for Windows 8.1 (KB2995004)MSWU-1038Unrated
404Update for Windows 8.1 (KB2990967)MSWU-1044Unrated
405Update for Internet Explorer Flash Player for Windows 8.1 (KB2999249)MSWU-1046Unrated
406Update for Windows 8.1 (KB2996799-v2)MSWU-1050Unrated
407Security Update for Windows 8.1 (KB2977292)MSWU-1054Critical
408Update for Windows 8.1 (KB3000850)MSWU-1113Unrated
409Update for Windows 8.1 (KB3014442)MSWU-1113Unrated
410Update for Windows 8.1 (KB2989930)MSWU-1117Unrated
411Update for Windows 8.1 (KB2994290)MSWU-1118Unrated
412Update for Windows 8.1 (KB3013769)MSWU-1126Unrated
413Update for Windows 8.1 (KB3013816)MSWU-1127Unrated
414Update for Windows 8.1 (KB3008242)MSWU-1143Unrated
415Update for Windows 8.1 (KB3012235)MSWU-1218Unrated
416Update for Windows 8.1 (KB3012702)MSWU-1219Unrated
417Update for Windows 8.1 (KB3013172)MSWU-1220Unrated
418Update for Windows 8.1 (KB3018133)MSWU-1221Unrated
419Update for Windows 8.1 (KB3024751)MSWU-1223Unrated
420Update for Windows 8.1 (KB3024755)MSWU-1224Unrated
421Update for Windows 8.1 (KB3027209)MSWU-1226Unrated
422Update for Windows 8.1 (KB3029606)MSWU-1227Unrated
423Update for Windows 8.1 (KB3030947)MSWU-1228Unrated
424Update for Windows 8.1 (KB3036612)MSWU-1235Unrated
425Update for Windows 8.1 (KB3042085)MSWU-1269Unrated
426Security Update for Windows 8.1 (KB3045755)MSWU-1270Critical
427Update for Windows 8.1 (KB3044374)MSWU-1306Unrated
428Update for Windows 8.1 (KB3013531)MSWU-1309Unrated
429Update for Windows 8.1 (KB3013538)MSWU-1310Unrated
430Update for Windows 8.1 (KB3015696)MSWU-1311Unrated
431Update for Windows 8.1 (KB3020370)MSWU-1312Unrated
432Update for Windows 8.1 (KB3033446)MSWU-1314Unrated
433Update for Windows 8.1 (KB3037924)MSWU-1315Unrated
434Update for Windows 8.1 (KB3038002)MSWU-1316Unrated
435Update for Windows 8.1 (KB3044673)MSWU-1320Unrated
436Update for Windows 8.1 (KB3045717)MSWU-1321Unrated
437Update for Windows 8.1 (KB3045719)MSWU-1322Unrated
438Update for Windows 8.1 (KB3045992)MSWU-1323Unrated
439Update for Windows 8.1 (KB3046737)MSWU-1324Unrated
440Update for Windows 8.1 (KB3047254)MSWU-1325Unrated
441Update for Windows 8.1 (KB3054169)MSWU-1331Unrated
442Update for Windows 8.1 (KB3046480)MSWU-1336Unrated
443Update for Windows 8.1 (KB3048043)MSWU-1337Unrated
444Update for Windows 8.1 (KB3029432)MSWU-1375Unrated
445Update for Windows 8.1 (KB3029603)MSWU-1376Unrated
446Update for Windows 8.1 (KB3041857)MSWU-1380Unrated
447Update for Windows 8.1 (KB3045634)MSWU-1381Unrated
448Update for Windows 8.1 (KB3045746)MSWU-1382Unrated
449Update for Windows 8.1 (KB3054464)MSWU-1383Unrated
450Update for Windows 8.1 (KB3055323)MSWU-1385Unrated
451Security Update for Windows 8.1 (KB3062760)MSWU-1390Low
452Update for Windows 8.1 (KB3013791)MSWU-1423Unrated
453Update for Windows 8.1 (KB3064209)MSWU-1428Unrated
454Update for Windows 8.1 (KB3064059)MSWU-1429Unrated
455Update for Windows 8.1 (KB3063843)MSWU-1430Unrated
456Update for Windows 8.1 (KB3053863)MSWU-1432Unrated
457Update for Windows 8.1 (KB3060793)MSWU-1436Unrated
458Update for Windows 8.1 (KB3054256)MSWU-1440Unrated
459Update for Windows 8.1 (KB3056347)MSWU-1441Unrated
460Update for Windows 8.1 (KB3059316)MSWU-1445Unrated
461Update for Windows 8.1 (KB3061493) MSWU-1482Unrated
462Update for Windows 8.1 (KB3072019)MSWU-1487Unrated
463Update for Windows 8.1 (KB3055343)MSWU-1488Unrated
464Update for Windows 8.1 (KB3038936)MSWU-1491Unrated
465Update for Windows 8.1 (KB3052480)MSWU-1513Unrated
466Update for Windows 8.1 (KB3078676)MSWU-1519Unrated
467Update for Windows 8.1 (KB3079318)MSWU-1520Unrated
468Update for Windows 8.1 (KB3080149)MSWU-1522Unrated
469Update for Windows 7 for x64-based Systems (KB3080149)MSWU-1522Unrated
470Update for Windows 8.1 (KB3092627)MSWU-1523Unrated
471Update for Windows 8.1 (KB3080042)MSWU-1558Unrated
472Update for Windows 8.1 (KB3080800)MSWU-1560Unrated
473Update for Windows 8.1 (KB3084905)MSWU-1563Unrated
474Update for Windows 8.1 (KB3087041)MSWU-1564Unrated
475Update for Windows 8.1 (KB3087137)MSWU-1565Unrated
476Update for Windows 8.1 (KB3087390)MSWU-1566Unrated
477Security Update for Windows 8.1 (KB3042058)MSWU-1579Critical
478Update for Windows 8.1 (KB3034348)MSWU-1615Unrated
479Update for Windows 8.1 (KB3091297)MSWU-1619Unrated
480Update for Windows 8.1 (KB3095701)MSWU-1623Unrated
481Update for Windows 8.1 (KB3096433)MSWU-1624Unrated
482Update for Windows 8.1 (KB3078405)MSWU-1646Unrated
483Update for Windows 8.1 (KB3099834)MSWU-1649Unrated
484Update for Windows 8.1 (KB3100956)MSWU-1651Unrated
485Update for Windows 8.1 (KB3102429)MSWU-1653Unrated
486Update for Windows 8.1 (KB3103696)MSWU-1654Unrated
487Security Update for Windows 8.1 (KB3109853)MSWU-1709Low
488Security Update for Windows 8.1 (KB3123479)MSWU-1710Low
489Update for Windows 8.1 (KB3135449)MSWU-1738Unrated
490Update for Windows 8.1 (KB3132080)MSWU-1761Unrated
491Update for Windows 8.1 (KB3103699)MSWU-1778Unrated
492Update for Windows 8.1 (KB3106637)MSWU-1779Unrated
493Update for Windows 8.1 (KB3118401)MSWU-1780Unrated
494Update for Windows 8.1 (KB3121255)MSWU-1781Unrated
495Update for Windows 8.1 (KB3121260)MSWU-1782Unrated
496Update for Windows 8.1 (KB3121261)MSWU-1783Unrated
497Update for Windows 8.1 (KB3123242)MSWU-1784Unrated
498Update for Windows 8.1 (KB3125210)MSWU-1787Unrated
499Update for Windows 8.1 (KB3126030)MSWU-1788Unrated
500Update for Windows 8.1 (KB3126033)MSWU-1789Unrated
501Update for Windows 8.1 (KB3128650)MSWU-1791Unrated
502Update for Windows 8.1 (KB3130896)MSWU-1792Unrated
503Update for Windows 8.1 (KB3133924)MSWU-1798Unrated
504Update for Windows 8.1 (KB3134812)MSWU-1800Unrated
505Update for Windows 8.1 (KB3134815)MSWU-1802Unrated
506Update for Windows 8.1 (KB3138615)MSWU-1807Unrated
507Update for Windows 8.1 (KB3139921)MSWU-1810Unrated
508Update for Windows 8.1 (KB3100473)MSWU-1842Unrated
509Update for Windows 8.1 (KB3105115)MSWU-1843Unrated
510Update for Windows 8.1 (KB3109976)MSWU-1845Unrated
511Update for Windows 8.1 (KB3133681)MSWU-1848Unrated
512Update for Windows 8.1 (KB3134785)MSWU-1852Unrated
513Update for Windows 8.1 (KB3136019)MSWU-1853Unrated
514Update for Windows 8.1 (KB3137061)MSWU-1854Unrated
515Update for Windows 8.1 (KB3137725)MSWU-1856Unrated
516Update for Windows 8.1 (KB3137728)MSWU-1858Unrated
517Update for Windows 8.1 (KB3138602)MSWU-1861Unrated
518Update for Windows 8.1 (KB3139165)MSWU-1866Unrated
519Update for Windows 8.1 (KB3139219)MSWU-1867Unrated
520Update for Windows 8.1 (KB3139923)MSWU-1870Unrated
521Update for Windows 8.1 (KB3140185)MSWU-1871Unrated
522Update for Windows 8.1 (KB3140219)MSWU-1872Unrated
523Update for Windows 8.1 (KB3140222)MSWU-1873Unrated
524Update for Windows 8.1 (KB3140234)MSWU-1874Unrated
525Update for Windows 8.1 (KB3140250)MSWU-1875Unrated
526Update for Windows 8.1 (KB3140786)MSWU-1876Unrated
527Update for Windows 8.1 (KB3141074)MSWU-1878Unrated
528Update for Windows 8.1 (KB3115224)MSWU-1880Unrated
529Update for Windows 8.1 (KB3147071)MSWU-1916Unrated
530Update for Windows 8.1 (KB3148851)MSWU-1919Unrated
531Security Update for Windows 8.1 (KB3151058)MSWU-1950Critical
532Update for Windows 8.1 (KB3153731)MSWU-1952Unrated
533Update for Windows 8.1 (KB3156418)MSWU-1957Unrated
534Update for Windows 8.1 (KB3162835)MSWU-1992Unrated
535Update for Windows 8.1 (KB3161606)MSWU-1993Unrated
536Update for Windows 8.1 (KB3170735)MSWU-2030Unrated
537Update for Windows 8.1 (KB3173424)MSWU-2031Unrated
538Update for Windows 8.1 (KB2976978)MSWU-2037Unrated
539Update for Windows 8.1 (KB3172614)MSWU-2039Unrated
540Update for Windows 8.1 (KB3138378)MSWU-2042Unrated
541Update for Windows 8.1 (KB3161102)MSWU-2043Unrated
542Update for Windows 8.1 (KB3179574)MSWU-2079Unrated
543Update for Windows 8.1 (KB3177723)MSWU-2081Unrated
544Update for Windows 8.1 (KB3103709)MSWU-2084Unrated
545Update for Windows 8.1 (KB3103616)MSWU-2111Unrated
546Update for Windows 8.1 (KB3125424)MSWU-2112Unrated
547Update for Windows 8.1 (KB3145384)MSWU-2113Unrated
548Update for Windows 8.1 (KB3146604)MSWU-2114Unrated
549Update for Windows 8.1 (KB3146751)MSWU-2115Unrated
550Update for Windows 8.1 (KB3149157)MSWU-2116Unrated
551Update for Windows 8.1 (KB3150513)MSWU-2117Unrated
552Security Update for Windows 8.1 (KB3174644)MSWU-2119Critical
553Update for Windows 8.1 (KB3187022)MSWU-2126Unrated
554Update for Windows 8.1 (KB3182203)MSWU-2133Unrated
555Update for Windows 8.1 (KB3185279)MSWU-2136Unrated
556Reliability Rollup for Microsoft .NET Framework 4.5.2 on Windows 8.1 (KB3186208)MSWU-2138Unrated
557Reliability Rollup for Microsoft .NET Framework 4.6 and 4.6.1 on Windows 8.1 (KB3186208)MSWU-2138Unrated
558Update for Internet Explorer 11 for Windows 8.1 (KB3192665)MSWU-2143Unrated
559Update for Windows 8.1 (KB2976978)MSWU-2037Unrated
560October, 2016 Preview of Monthly Quality Rollup for Windows 8.1 (KB3192404)MSWU-2165Unrated
561Update for Internet Explorer 11 for Windows 8.1 (KB3200006)MSWU-2171Unrated
562Update for Windows 7 (KB3192321)MSWU-2166Unrated
563Update for Windows 8.1 (KB3192321)MSWU-2166Unrated
564Update for Windows 8.1 (KB2976978)MSWU-2198Unrated
565November 2016 Preview of Monthly Quality Rollup for Windows 8.1 (KB3197875)MSWU-2214Unrated
566Update for Windows 8.1 (KB3203884)MSWU-2261Unrated
567Update for Windows 8.1 V21 (KB2976978)MSWU-2198Unrated
568Update for Windows 8.1 for x64-based Systems V21 (KB2976978) MSWU-2198Unrated
569Update for Windows 8.1 (KB4012864)MSWU-2357Unrated
570Preview of Monthly Quality Rollup for Windows 8.1 (KB4012219)MSWU-2355Unrated
571Update for Windows 8.1 (KB4016754)MSWU-2367Unrated
572Update for Windows 8.1 (KB4015193)MSWU-2402Unrated
573April, 2017 Preview of Monthly Quality Rollup for Windows 8.1 (KB4015553)MSWU-2404Unrated
5742017-05 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-2463Unrated
575Update and 404 Error While Printing a Frame Fix for Internet Explorer 11 for Windows 8.1 (KB4032782)MSWU-2507Unrated
5762017-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4022720)- Petya ransomware attack (CVE-2017-0199)MSWU-2514Unrated
577Update for Windows 8.1 (KB4020322)MSWU-2548Unrated
5782017-07 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4025335)MSWU-2585Unrated
5792017-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4025335)MSWU-2585Unrated
5802017-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4034663)MSWU-2599Unrated
5812017-08 Update for Windows 8.1 for x86-based Systems (KB4039871)MSWU-2609Unrated
5822017-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4038774)MSWU-2670Unrated
5832017-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4041685)MSWU-2700Unrated
584Update for Adobe Flash Player for Windows 8.1 (KB4051613)MSWU-2708Unrated
5852017-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4050946)MSWU-2761Unrated
586Update for Windows 8.1 (KB4049068)MSWU-2763Unrated
5872017-11 Update for Windows 8.1 for x86-based Systems (KB4055038)MSWU-2764Unrated
588Update for Windows 8.1 (KB4051956)MSWU-2799Unrated
5892018-01 Update for Windows 8.1 for x86-based Systems (KB4073576)MSWU-2803Unrated
5902018-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4057401)MSWU-2804Unrated
591Update to Disable Mitigation against Spectre, Variant 2 (KB4078130)MSWU-2817Unrated
592Update for Windows 8.1 (KB4074837)MSWU-2833Unrated
5932018-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4075212)MSWU-2843Unrated
594Disable Windows Automatic UpdateMSWU-2853Unrated
5952018-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4088882)MSWU-2867Unrated
5962018-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4093121)MSWU-2887Unrated
597Update for Windows 8.1 (KB4093753)MSWU-2888Unrated
5982018-05 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4103724)MSWU-2917Unrated
599Update for Windows 8.1 (KB4130978)MSWU-2921Unrated
6002018-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4284863)MSWU-2946Unrated
6012018-07 Update for Windows 8.1 for x86-based Systems (KB4345424)MSWU-2961Unrated
6022018-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4338831)MSWU-2971Unrated
603Update for Windows 8.1 (KB4339284)MSWU-2973Unrated
6042018-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4343891)MSWU-3007Unrated
605Fix Component Store CorruptionMSWU-3025Unrated
6062018-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4457133)MSWU-3036Unrated
607Update for Adobe Flash Player for Windows 8.1 (KB4462930)MSWU-3044Unrated
608Update for Windows 8.1 (KB4462901)MSWU-3047Unrated
6092018-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4462921)MSWU-3048Unrated
610Update for Windows 8.1 (KB4468323)MSWU-3076Unrated
6112018-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4467695)MSWU-3077Unrated
6122019-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4480969)MSWU-3117Unrated
613Update for Windows Management Framework 5.1 for Windows 8.1 (KB3191564)MSWU-3156Unrated
6142019-02 Update for Windows 8.1 for x86-based Systems (KB4486459)MSWU-3166Unrated
6152019-02 Update for Windows 8.1 for x86-based Systems (KB4491113)MSWU-3168Unrated
6162019-02 Update for Windows 8.1 for x86-based Systems (KB4490512)MSWU-3170Unrated
6172019-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4487016)MSWU-3176Unrated
6182019-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4489893)MSWU-3215Unrated
6192019-03 Update for Windows 8.1 for x86-based Systems (KB4490128)MSWU-3234Unrated
620Sophos Antivirus DetectorMSWU-3242Unrated
6212019-04 Update for Windows 8.1 for x86-based Systems (KB4496878)MSWU-3250Unrated
6222019-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4493443)MSWU-3245Unrated
6232019-05 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4499182)MSWU-3274Unrated
6242019-05 Update for Windows 8.1 for x86-based Systems (KB4501226)MSWU-3277Unrated
6252019-05 Update for Windows 8.1 for x86-based Systems (KB4505050)MSWU-3282Unrated
6262019-06 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4503283)MSWU-3298Unrated
6272019-06 Update for Windows 8.1 for x86-based Systems (KB4508773)MSWU-3300Unrated
6282019-07 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4507463)MSWU-3306Unrated
6292019-07 Update for Windows 8.1 for x86-based Systems (KB4507704)MSWU-3307Unrated
6302019-07 Update for Internet Explorer 11 for Windows 8.1 for x86-based Systems (KB4510979)MSWU-3308Unrated
6312019-08 Update for Windows 8.1 for x86-based Systems (KB4517298)MSWU-3322Unrated
6322019-08 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4512478)MSWU-3323Unrated
6332019-09 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4516041)MSWU-3332Unrated
6342019-10 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4520012)MSWU-3342Unrated
6352019-10 Update for Windows 8.1 for x86-based Systems (KB4519108)MSWU-3344Unrated
6362019-11 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4525252)MSWU-3350Unrated
6372020-01 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4534324)MSWU-3360Unrated
6382020-02 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4537819)MSWU-3369Unrated
639Disable Check For UpdatesMSWU-2853Unrated
640Enable Windows Automatic UpdateMSWU-2853Unrated
641Enable Check For UpdatesMSWU-2853Unrated
6422020-03 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4541334)MSWU-3377Unrated
6432020-04 Preview of Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4550958)MSWU-3384Unrated
6442020-06 Update for Windows 8.1 for x86-based Systems (KB4567521)MSWU-3393Unrated
645Update for Removal of Adobe Flash Player for Windows 8.1 for x86-based systems (KB4577586)MSWU-3420Unrated
6462020-11 Update for Windows 8.1 for x86-based Systems (KB4594439)MSWU-3422Unrated
6472021-03 Update for Windows 8.1 for x86-based Systems (KB5001640)MSWU-3436Unrated
6482021-07 Update for Windows 8.1 for x86-based Systems (KB5005391)MSWU-3451Unrated

Disclaimer: This webpage is intended to provide you information about patch announcement for certain specific software products. The information is provided "As Is" without warranty of any kind. The links provided point to pages on the vendors websites. You can get more information by clicking the links to visit the relevant pages on the vendors website.