Patch Repository

Windows 8.1 Enterprise Edition Patches
S.No Patch Description Bulletin id Severity
1Windows 8.1 Update 1 for (KB2919355)MS14-018Critical
2Windows 8.1 Update (KB2932046)MS14-018Critical
3Windows 8.1 Update (KB2934018)MS14-018Critical
4Windows 8.1 Update (KB2937592)MS14-018Critical
5Windows 8.1 Update (KB2938439)MS14-018Critical
6Security Update for Windows 8.1 (KB2928120)MS14-025Important
7Security Update for Windows 8.1 (KB2961899) without KB2919355MS14-025Important
8Security Update for Windows 8.1 (KB2957189)MS14-031Important
9Security Update for Windows 8.1 (KB2978742)MS14-043Critical
10Security Update for Windows 8.1 (KB2993651)MS14-045Important
11Security Update for Windows 8.1 (KB3010788)MS14-064Important
12Security Update for Windows 8.1 (KB3003743)MS14-074Important
13Security Update for Windows 8.1 (KB2982998)MS14-076Important
14Security Update for Windows 8.1 (KB3020393)MS15-002Critical
15Security Update for Windows 8.1 (KB3021674)MS15-003Important
16Security Update for Windows 8.1 (KB3019978)MS15-004Important
17Security Update for Windows 8.1 (KB3022777)MS15-005Important
18Security Update for Windows 8.1 (KB3004365)MS15-006Important
19Security Update for Windows 8.1 (KB3000483)MS15-011Critical
20Security Update for Windows 8.1 (KB3004361)MS15-014Important
21Security Update for Windows 8.1 (KB3030377)MS15-028Important
22Security Update for Windows 8.1 (KB3035126)MS15-029Important
23Security Update for Windows 8.1 (KB3042553)MS15-034Critical
24Security Update for Windows 8.1 (KB3045685)MS15-038Important
25Security Update for Windows 8.1 (KB3055642)MS15-050Important
26Security Update for Windows 8.1 (KB3059317)MS15-060Important
27Security Update for Windows 8.1 (KB3061512)MS15-069Important
28Security Update for Windows 8.1 (KB3072630)MS15-074Important
29Security Update for Windows 8.1 (KB3075220)MS15-082Important
30Security Update for Windows 8.1 (KB3076895)MS15-084Important
31Security Update for Windows 8.1 (KB3071756)MS15-085Important
32Security Update for Windows 8.1 (KB3046017)MS15-088Important
33Security Update for Windows 8.1 (KB3076949)MS15-089Important
34Security Update for Windows 8.1 (KB3084135)MS15-102Important
35Security Update for Windows 8.1 (KB3082089)MS15-102Important
36Security Update for Windows 8.1 (KB3086255)MS15-097Critical
37Security Update for Windows 8.1 (KB3092601)MS15-119Important
38Security Update for Windows 8.1 (KB3102939)MS15-120Important
39Security Update for Windows 8.1 (KB3109094)MS15-128Critical
40Security Update for Windows 8.1 (KB3108381)MS15-132Important
41Security Update for Windows 8.1 (KB3109103)MS15-133Important
42Security Update for Windows 8.1 (KB3124001)MS16-005Critical
43Security Update for Windows 8.1 (KB3121918)MS16-007Important
44Security Update for Windows 8.1 (KB3109560)MS16-007Important
45Security Update for Windows 8.1 (KB3110329)MS16-007Important
46Security Update for Windows 8.1 (KB3121461)MS16-007Important
47Security Update for Windows 8.1 (KB3121212)MS16-008Important
48Microsoft Windows Malicious Software Removal Tool (KB890830). Jan 11, 2016MSRT-001Moderate
49Microsoft Windows Malicious Software Removal Tool (KB890830). Feb 09, 2016MSRT-001Moderate
50Security Update for Windows 8.1 (KB3123294)MS16-012Critical
51Security Update for Windows 8.1 (KB3115858)MS16-013Critical
52Security Update for Windows 8.1 (KB3126587)MS16-014Important
53Security Update for Windows 8.1 (KB3126593)MS16-014Important
54Security Update for Windows 8.1 (KB3126434)MS16-014Important
55Security Update for Windows 8.1 (KB3126041)MS16-014Important
56Security Update for Windows 8.1 (KB3124280)MS16-016Important
57Security Update for Windows 8.1 (KB3126446)MS16-017Important
58Security Update for Windows 8.1 (KB3134214)MS16-018Important
59Security Update for Adobe Flash Player for Windows 8.1 (KB3135782)MS16-022Critical
60Security Update for Windows 8.1 (KB3140735)MS16-026Critical
61Security Update for Windows 8.1 (KB3138910)MS16-027Critical
62Security Update for Windows 8.1 (KB3138962)MS16-027Critical
63Security Update for Windows 8.1 (KB3137513)MS16-028Critical
64Security Update for Windows 8.1 (KB3139940)MS16-030Important
65Security Update for Windows 8.1 (KB3139914)MS16-032Important
66Security Update for Windows 8.1 (KB3139398)MS16-033Important
67Security Update for Windows 8.1 (KB3139852)MS16-034Important
68Microsoft Windows Malicious Software Removal Tool (KB890830). Mar 08, 2016MSRT-001Moderate
69Security Update for Adobe Flash Player for Windows 8.1 (KB3144756)MS16-036Critical
70Security Update for Windows 8.1 (KB3145739)MS16-039Critical
71Security Update for Windows 8.1 (KB3149090)MS16-047Important
72Security Update for Windows 8.1 (KB3146723)MS16-048Important
73Security Update for Adobe Flash Player for Windows 8.1 (KB3154132)MS16-050Critical
74Microsoft Windows Malicious Software Removal Tool (KB890830). Apr 13, 2016MSRT-001Moderate
75Security Update for Windows 8.1 (KB3146706)MS16-044Important
76Security Update for Windows 8.1 (KB3156013)MS16-055Critical
77Security Update for Windows 8.1 (KB3156016)MS16-055Critical
78Security Update for Windows 8.1 (KB3156019)MS16-055Critical
79Security Update for Windows 8.1 (KB3155178)MS16-056Critical
80Security Update for Windows 8.1 (KB3156059)MS16-057Critical
81Security Update for Windows 8.1 (KB3153704)MS16-061Important
82Security Update for Windows 8.1 (KB3153199)MS16-062Important
83Security Update for Windows 8.1 (KB3156017)MS16-062Important
84Security Update for Adobe Flash Player for Windows 8.1 (KB3157993)MS16-064Critical
85Security Update for Windows 8.1 (KB3155784)MS16-067Important
86Security Update for Windows 8.1 (KB3150220)MS16-059Important
87Security Update for Windows 8.1 (KB3153171)MS16-060Important
88Microsoft Windows Malicious Software Removal Tool (KB890830). May 11, 2016MSRT-001Moderate
89Security Update for Adobe Flash Player for Windows 8.1 (KB3163207)MS16-064Critical
90Security Update for Windows 8.1 (KB3161664)MS16-073Important
91Security Update for Windows 8.1 (KB3159398)MS16-072Important
92Security Update for Windows 8.1 (KB3164033)MS16-074Important
93Security Update for Windows 8.1 (KB3164035)MS16-074Important
94Security Update for Windows 8.1 (KB3161561)MS16-075Important
95Security Update for Windows 8.1 (KB3161949)MS16-077Important
96Security Update for Windows 8.1 (KB3157569)MS16-080Important
97Security Update for Windows 8.1 (KB3161958)MS16-082Important
98Microsoft Windows Malicious Software Removal Tool (KB890830). Jun 14, 2016MSRT-001Moderate
99Security Update for Adobe Flash Player for Windows 8.1 (KB3167685)MS16-083Critical
100Security Update for Windows 8.1 (KB3170455)MS16-087Critical
101Security Update for Windows 8.1 (KB3168965)MS16-090Important
102Security Update for Windows 8.1 (KB3170377)MS16-092Important
103Security Update for Windows 8.1 (KB3169704)MS16-092Important
104Security Update for Adobe Flash Player for Windows 8.1 (KB3174060)MS16-093Critical
105Security Update for Windows 8.1 (KB3172727)MS16-094Important
106Microsoft Windows Malicious Software Removal Tool (KB890830). July 14, 2016MSRT-001Moderate
107Security Update for Windows 8.1 (KB3178034)MS16-097Critical
108Security Update for Windows 8.1 (KB3177725)MS16-098Important
109Security Update for Windows 8.1 (KB3172729)MS16-100Important
110Security Update for Windows 8.1 (KB3167679)MS16-101Important
111Security Update for Windows 8.1 (KB3177108)MS16-101Important
112Security Update for Windows 8.1 (KB3175887)MS16-102Critical
113Microsoft Windows Malicious Software Removal Tool (KB890830). Aug 10, 2016MSRT-001Moderate
114Security Update for Windows 8.1 (KB3185911)MS16-106Important
115Security Update for Windows 8.1 (KB3184471)MS16-110Important
116Security Update for Windows 8.1 (KB3187754)MS16-110Important
117Security Update for Windows 8.1 (KB3175024)MS16-111Important
118Security Update for Windows 8.1 (KB3178539)MS16-112Important
119Security Update for Windows 8.1 (KB3177186)MS16-114Important
120Security Update for Windows 8.1 (KB3184943)MS16-115Important
121Security Update for Windows 8.1 (KB3184122)MS16-116Critical
122Security Update for Adobe Flash Player for Windows 8.1 (KB3188128)MS16-117Critical
123Microsoft Windows Malicious Software Removal Tool (KB890830). Sep 13, 2016MSRT-001Moderate
124October, 2016 Security Only Quality Update for Windows 8.1 (KB3192392)MS16-123Important
125Security Update for Adobe Flash Player for Windows 8.1 (KB3194343)MS16-127Critical
126Microsoft Windows Malicious Software Removal Tool (KB890830).Oct 11, 2016MSRT-001Moderate
127October, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3185331)MS16-124Important
128Security Update for Adobe Flash Player for Windows 8.1 (KB3201860)MS16-128Critical
129November, 2016 Security Only Quality Update for Windows 8.1 (KB3197873)MS16-130Critical
130November, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3197874)MS16-130Critical
131Security Update for Adobe Flash Player for Windows 8.1 (KB3202790)MS16-141Critical
132Microsoft Windows Malicious Software Removal Tool (KB890830).Nov 08, 2016MSRT-001Moderate
133December, 2016 Security Only Quality Update for Windows 8.1 (KB3205400)MS16-146Critical
134December, 2016 Security Monthly Quality Rollup for Windows 8.1 (KB3205401)MS16-146Critical
135Security Update for Adobe Flash Player for Windows 8.1 (KB3209498)MS16-154Critical
136Microsoft Windows Malicious Software Removal Tool (KB890830).Dec 13,2016MSRT-001Moderate
137Security Update for Adobe Flash Player for Windows 8.1 (KB3214628)MS17-003Critical
138Microsoft Windows Malicious Software Removal Tool (KB890830) Jan 10,2017MSRT-001Moderate
139Microsoft Windows Malicious Software Removal Tool (KB890830) Feb 21,2017MSRT-001Moderate
140Security Update for Adobe Flash Player for Windows 8.1 (KB4010250)MS17-005Critical
141Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4012204)MS17-006Critical
142Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4012204)MS17-006Critical
143March, 2017 Security Monthly Quality Rollup for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012216)MS17-006Critical
144March, 2017 Security Only Quality Update for Windows 8.1 - WannaCrypt Ransomware Worm(KB4012213)MS17-010Critical
145Security Update for Adobe Flash Player for Windows 8.1 (KB4014329)MS17-023Critical
146Microsoft Windows Malicious Software Removal Tool (KB890830)Mar 14,2017MSRT-001Moderate
147April, 2017 Security Monthly Quality Rollup for Windows 8.1 (KB4015550)MS17-APR1Critical
148Security Update for Adobe Flash Player for Windows 8.1 (KB4018483)MS17-APR6Critical
149April, 2017 Security Only Quality Update for Windows 8.1 (KB4015547)MS17-APR7Important
150Microsoft Windows Malicious Software Removal Tool (KB890830)APRIL 11,2017MSRT-001Moderate
151Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4020821)MS17-MAY5Critical
1522017-05 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
1532017-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4019213)MS17-MAY6Important
154Microsoft Windows Malicious Software Removal Tool (KB890830) May 9,2017MSRT-001Moderate
155Windows Malicious Software Removal Tool - May 2017 (KB890830)MSRT-001Moderate
1562017-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4022726)MS17-JUN2Critical
1572017-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4022717)MS17-JUN2Critical
1582017-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4022730)MS17-JUN4Critical
159Windows Malicious Software Removal Tool - June 2017 (KB890830)MSRT-001Moderate
1602017-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4025336)MS17-JUL2Critical
1612017-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4025333)MS17-JUL2Critical
1622017-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4025376)MS17-JUL4Critical
163Windows Malicious Software Removal Tool - July 2017 (KB890830)MSRT-001Moderate
1642017-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4034681)MS17-AUG1Critical
1652017-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4034672)MS17-AUG1Critical
1662017-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4034662)MS17-AUG3Critical
167Windows Malicious Software Removal Tool - August 2017 (KB890830)MSRT-001Moderate
1682017-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4038792)MS17-SEP1Critical
1692017-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4038793)MS17-SEP1Critical
170Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4038806)MS17-SEP3Critical
171Windows Malicious Software Removal Tool - september 2017 (KB890830)MSRT-001Moderate
1722017-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4041687)MS17-OCT1Critical
1732017-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4041693)MS17-OCT1Critical
174Windows Malicious Software Removal Tool - October 2017 (KB890830)MSRT-001Moderate
175Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4049179)MS17-OCT7Critical
1762017-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4048958)MS17-NOV1Critical
1772017-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4048961)MS17-NOV1Critical
1782017-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4048961)MS17-NOV1Critical
179Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4048951)MS17-NOV4Critical
180Windows Malicious Software Removal Tool - November 2017 (KB890830)MSRT-001Moderate
1812017-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4054519)MS17-DEC1Critical
1822017-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4054522)MS17-DEC1Important
183Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4053577)MS17-DEC5Critical
184Windows Malicious Software Removal Tool - December 2017 (KB890830)MSRT-001Moderate
1852018-01 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056898)MS18-JAN1Important
1862018-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4056895)MS18-JAN1Critical
187Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
1882018-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4056887)MS18-JAN6Critical
189Windows Malicious Software Removal Tool - january 2018 (KB890830)MSRT-001Moderate
1902018-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4074595)MS18-FEB1Critical
1912018-02 Security Only Quality Update for Windows 8.1 for x86-based Systems - Meltdown and Spectre (KB4074597)MS18-FEB2Critical
1922018-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems - Meltdown and Spectre(KB4074594)MS18-FEB2Critical
193Windows Malicious Software Removal Tool - February 2018 (KB890830)MSRT-001Unrated
194Windows Malicious Software Removal Tool - March 2018 (KB890830)MSRT-001Unrated
195Windows Malicious Software Removal Tool - April 2018 (KB890830)MSRT-001Unrated
196Windows Malicious Software Removal Tool - May 2018 (KB890830)MSRT-001Unrated
197Windows Malicious Software Removal Tool - June 2018 (KB890830)MSRT-001Unrated
198Windows Malicious Software Removal Tool - July 2018 (KB890830)MSRT-001Unrated
199Windows Malicious Software Removal Tool - August 2018 (KB890830)MSRT-001Unrated
200Windows Malicious Software Removal Tool - September 2018 (KB890830)MSRT-001Unrated
201Windows Malicious Software Removal Tool - october 2018 (KB890830)MSRT-001Unrated
202Windows Malicious Software Removal Tool - November 2018 (KB890830)MSRT-001Unrated
203Windows Malicious Software Removal Tool - December 2018 (KB890830)MSRT-001Unrated
204Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
205Prerequisite Handler for Meltdown and SpectreMS18-JAN5Critical
2062018-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4088785)MS18-MAR1Critical
2072018-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4088876)MS18-MAR2Important
2082018-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4088879)MS18-MAR2Important
2092018-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4093115)MS18-APR2Critical
2102018-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4093110)MS18-APR1Critical
2112018-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4093114) MS18-APR7Critical
2122018-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4103729)MS18-MAY1Critical
213Cumulative Security Update for Internet Explorer 11 for Windows 8.1 (KB4103768)MS18-MAY5Critical
2142018-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4103715)MS18-MAY2Critical
2152018-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4103725)MS18-MAY6Critical
2162018-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4287903)MS18-JUN1Critical
2172018-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4284878)MS18-JUN2Critical
2182018-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4284815)MS18-JUN6Critical
2192018-07 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4338832)MS18-JULY1Critical
2202018-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4338824)MS18-JULY2Important
2212018-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4338815)MS18-JULY6Important
2222018-08 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4343902)MS18-AUG1Critical
2232018-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4343888)MS18-AUG2Critical
2242018-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4343898)MS18-AUG6Critical
2252018-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4457146)MS18-SEP1Critical
2262018-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4457143)MS18-SEP2Critical
2272018-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4457129)MS18-SEP6Critical
2282018-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4462941)MS18-OCT2Critical
2292018-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4462926)MS18-OCT6Critical
2302018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4467694)MS18-NOV1Critical
2312018-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4467703)MS18-NOV2Critical
2322018-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4467697)MS18-NOV6Critical
2332018-11 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4477029)MS18-NOV12Critical
2342018-12 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4471331)MS18-DEC1Critical
2352018-12 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
236KB4471989 - Security and Quality Rollup for .NET Framework 3.5 for Windows 8.1 (KB4470630)MS18-DEC8Important
2372018-12 Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1 (KB4470622)MS18-DEC8Important
2382018-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4471322)MS18-DEC2Critical
2392018-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4471320)MS18-DEC6Critical
240Windows Malicious Software Removal Tool - January 2019 (KB890830)MSRT-001Unrated
2412019-01 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4480979)MS19-JAN1Critical
2422019-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4480964)MS19-JAN2Important
2432019-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4480963)MS19-JAN6Important
2442019-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4487038)MS19-FEB1Critical
2452019-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4487028)MS19-FEB2Critical
2462019-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4487000)MS19-FEB6Critical
247Windows Malicious Software Removal Tool - February 2019 (KB890830)MSRT-001Moderate
2482019-03 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4489907)MS19-MAR1Critical
2492019-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4489883)MS19-MAR2Critical
2502019-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4489881)MS19-MAR6Critical
251Windows Malicious Software Removal Tool - March 2019 (KB890830)MSRT-001Moderate
2522019-04 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4493478)MS19-APR1Critical
2532019-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4493467)MS19-APR2Critical
2542019-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4493446)MS19-APR6Critical
255Windows Malicious Software Removal Tool - April 2019 (KB890830)MSRT-001Moderate
2562019-05 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4497932)MS19-MAY1Critical
2572019-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4499165)MS19-MAY2Critical
2582019-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4499151)MS19-MAY6Critical
259Windows Malicious Software Removal Tool - May 2019 (KB890830)MSRT-001Moderate
2602019-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4503308)MS19-JUN1Critical
2612019-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4503290)MS19-JUN2Critical
2622019-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4503276)MS19-JUN6Critical
263Windows Malicious Software Removal Tool - June 2019 (KB890830)MSRT-001Moderate
264Windows Malicious Software Removal Tool x64 - June 2019 (KB890830)MSRT-001Moderate
2652019-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4507457) (CVE-2019-0880)MS19-JUL2Critical
2662019-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4507448) (CVE-2019-0880)MS19-JUL6Critical
2672019-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4504418)MS19-JUL12Critical
268Windows Malicious Software Removal Tool - July 2019 (KB890830)MSRT-001Moderate
269Windows Malicious Software Removal Tool x64 - July 2019 (KB890830)MSRT-001Moderate
2702019-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4512489)MS19-AUG2Critical
2712019-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4512488)MS19-AUG6Critical
272Windows Malicious Software Removal Tool - August 2019 (KB890830)MSRT-001Moderate
273Windows Malicious Software Removal Tool x64 - August 2019 (KB890830)MSRT-001Moderate
2742019-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4516064)MS19-SEP2Critical
2752019-09 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4516115)MS19-SEP1Critical
2762019-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4516067)MS19-SEP6Critical
2772019-09 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4512938)MS19-SEP12Critical
2782019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4524156)MS19-OCT14Critical
2792019-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4519990)MS19-OCT2Critical
2802019-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4520005)MS19-OCT6Critical
2812019-10 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4521864)MS19-OCT15Critical
282Windows Malicious Software Removal Tool - October 2019 (KB890830)MSRT-001Moderate
283Windows Malicious Software Removal Tool x64 - October 2019 (KB890830)MSRT-001Moderate
2842019-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4525243)MS19-NOV6Critical
2852019-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4525250)MS19-NOV2Critical
286Windows Malicious Software Removal Tool x64 - November 2019 (KB890830)MSRT-001Moderate
287Windows Malicious Software Removal Tool - November 2019 (KB890830)MSRT-001Moderate
2882019-11 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4524445)MS19-NOV12Critical
2892019-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4530730)MS19-DEC2Critical
2902019-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4530702)MS19-DEC6Critical
291Windows Malicious Software Removal Tool x64 - December 2019 (KB890830)MSRT-001Moderate
292Windows Malicious Software Removal Tool - December 2019 (KB890830)MSRT-001Moderate
293Windows Malicious Software Removal Tool x64 - January 2020 (KB890830)MSRT-001Moderate
2942020-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4534309)MS20-JAN2Critical
2952020-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4534297)MS20-JAN6Critical
2962020-02 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4537759)MS20-FEB1Critical
2972020-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4537821)MS20-FEB6Critical
2982020-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4537803)MS20-FEB2Critical
2992020-02 Security Update for Windows 8.1 for x86-based Systems (KB4502496)MS20-FEB8Critical
300Windows Malicious Software Removal Tool x64 - February 2020 (KB890830)MSRT-001Moderate
301Windows Malicious Software Removal Tool x64 - March 2020 (KB890830)MSRT-001Moderate
3022020-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4541505)MS20-MAR2Critical
3032020-03 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4541509)MS20-MAR6Critical
3042020-03 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4540725)MS20-MAR12Critical
305Workaround for Font Parsing Remote Code Execution VulnerabilityMS20-MAR25Critical
306Patch for Undoing the changes of Workaround for Font Parsing Remote Code Execution VulnerabilityMS20-MAR25Critical
3072020-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4550970)MS20-APR2Critical
3082020-04 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4550961)MS20-APR6Critical
3092020-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4556853)MS20-MAY2Critical
3102020-05 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4556846)MS20-MAY6Critical
3112020-05 Update for Windows 8.1 for x86-based Systems (KB4557900)MS20-MAY13Low
312Windows Malicious Software Removal Tool x64 - May 2020 (KB890830)MSRT-001Moderate
3132020-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4561673)MS20-JUN2Critical
3142020-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4561666)MS20-JUN6Critical
3152020-06 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4562253)MS20-JUN12Critical
3162020-06 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4561600)MS20-JUN1Critical
3172020-07 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4565540,KB4569509) (CVE-2020-1350)MS20-JUL2Critical
3182020-07 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4565541,KB4569509) (CVE-2020-1350)MS20-JUL6Critical
3192020-07 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB4566425)MS20-JUL12Critical
3202020-08 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4571723) (CVE-2020-1464) (CVE-2020-1472)MS20-AUG2Critical
3212020-08 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4571703) (CVE-2020-1464) (CVE-2020-1380) (CVE-2020-1472)MS20-AUG6Critical
3222020-08 Security Update for Windows 8.1 for x86-based Systems (KB4578013)MS20-AUG16Critical
3232020-09 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4577071)MS20-SEP2Critical
3242020-09 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4577066)MS20-SEP6Critical
3252020-09 Update for Windows 8.1 for x86-based Systems (KB4566371)MS20-SEP16Low
326Windows Malicious Software Removal Tool x64 - September 2020 (KB890830)MSRT-001Moderate
3272020-10 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4580358)MS20-OCT2Critical
3282020-10 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4580347)MS20-OCT6Critical
3292020-10 Security Update for Adobe Flash Player for Windows 8.1 for x86-based Systems (KB4580325)MS20-OCT1Critical
3302020-10 Update for Windows 8.1 for x86-based Systems (KB4578623)MS20-OCT13Low
3312020-11 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4586823) (CVE-2020-17087)MS20-NOV2Critical
3322020-11 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4586845) (CVE-2020-17087)MS20-NOV6Critical
333Windows Malicious Software Removal Tool x64 - November 2020 (KB890830)MSRT-001Moderate
3342020-12 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4592495)MS20-DEC2Important
3352020-12 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4592484)MS20-DEC6Important
3362021-01 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4598275)MS21-JAN2Critical
3372021-01 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4598285)MS21-JAN6Critical
338Windows Malicious Software Removal Tool x64 - January 2021 (KB890830)MSRT-001Moderate
3392021-02 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB4601349)MS21-FEB2Critical
3402021-02 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB4601384)MS21-FEB6Critical
341Windows Malicious Software Removal Tool x64 - February 2021 (KB890830)MSRT-001Moderate
3422021-03 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5000853) (CVE-2021-27077)MS21-MAR2Critical
343Windows Malicious Software Removal Tool x64 - March 2021 (KB890830)MSRT-001Moderate
3442021-04 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5001393) (CVE-2021-28437) (CVE-2021-27091)MS21-APR2Critical
3452021-04 Servicing Stack Update for Windows 8.1 for x86-based Systems (KB5001403)MS21-APR12Critical
3462021-04 Update for Windows 8.1 for x86-based Systems (KB4601275)MS21-APR13Low
347Windows Malicious Software Removal Tool x64 - April 2021 (KB890830)MSRT-001Moderate
3482021-05 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003220)MS21-MAY2Critical
349Windows Malicious Software Removal Tool x64 - May 2021 (KB890830)MSRT-001Moderate
3502021-06 Security Only Quality Update for Windows 8.1 for x86-based Systems (KB5003681)MS21-JUN2Critical
3512021-06 Security Monthly Quality Rollup for Windows 8.1 for x86-based Systems (KB5003671)MS21-JUN6Critical
352Windows Malicious Software Removal Tool x64 - June 2021 (KB890830)MSRT-001Moderate

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.