| S.No |
Patch Description |
Bulletin id |
Severity |
| . | Cumulative Security Update for ActiveX Killbits for windows 8.1 for x64-based Systems (KB2900986) | MS13-090 | Critical |
| . | Windows 8.1 Update 1 for x64-based Systems (KB2919355) | MS14-018 | Critical |
| . | Windows 8.1 Update for x64-based Systems (KB2932046) (Deployment-Only) | MS14-018 | Critical |
| . | Windows 8.1 Update for x64-based Systems (KB2934018) (Deployment-Only) | MS14-018 | Critical |
| . | Windows 8.1 Update for x64-based Systems (KB2937592) (Deployment-Only) | MS14-018 | Critical |
| . | Windows 8.1 Update for x64-based Systems (KB2938439) (Deployment-Only) | MS14-018 | Critical |
| . | Security Update for Windows 8.1 for x64-based Systems (KB2928120) | MS14-025 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB2957189) | MS14-031 | Important |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Jan 11, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Feb 09, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Mar 08, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Apr 13, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 May 11, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Jun 14, 2016 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 July 14, 2016 | MSRT-001 | Moderate |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3177725) | MS16-098 | Important |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Aug 10, 2016 | MSRT-001 | Moderate |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3185911) | MS16-106 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3184471) | MS16-110 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3187754) | MS16-110 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3175024) | MS16-111 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3178539) | MS16-112 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3177186) | MS16-114 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3184943) | MS16-115 | Important |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3184122) | MS16-116 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3188128) | MS16-117 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Sep 13, 2016 | MSRT-001 | Moderate |
| . | October, 2016 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB3192392) | MS16-123 | Important |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3194343) | MS16-127 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Oct 11, 2016 | MSRT-001 | Moderate |
| . | October, 2016 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB3185331) | MS16-124 | Important |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3201860) | MS16-128 | Critical |
| . | November, 2016 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB3197873) | MS16-130 | Critical |
| . | November, 2016 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB3197874) | MS16-130 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3202790) | MS16-141 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Nov 08, 2016 | MSRT-001 | Moderate |
| . | December, 2016 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB3205400) | MS16-146 | Critical |
| . | December, 2016 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB3205401) | MS16-146 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3209498) | MS16-154 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Dec 13, 2016 | MSRT-001 | Moderate |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB3214628) | MS17-003 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Jan 10, 2017 | MSRT-001 | Moderate |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Feb 21, 2017 | MSRT-001 | Moderate |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4010250) | MS17-005 | Critical |
| . | Cumulative Security Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4012204) | MS17-006 | Critical |
| . | March, 2017 Security Only Quality Update for Windows 8.1 for x64-based Systems - WannaCrypt Ransomware Worm(KB4012213) | MS17-010 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4014329) | MS17-023 | Critical |
| . | March, 2017 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems - WannaCrypt Ransomware Worm(KB4012216) | MS17-006 | Critical |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 Mar 14, 2017 | MSRT-001 | Moderate |
| . | April, 2017 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4015550) | MS17-APR1 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4018483) | MS17-APR6 | Critical |
| . | April, 2017 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4015547) | MS17-APR7 | Important |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 April 11, 2017 | MSRT-001 | Moderate |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4020821) | MS17-MAY5 | Critical |
| . | 2017-05 Security Monthly Quality Rollup Update includes WannaCrypt Fix(MS17-010) and May Month Quality Rollup for Windows 8.1 for x64-based Systems (KB4019215) | MS17-MAY6 | Important |
| . | Microsoft Windows Malicious Software Removal Tool (KB890830) x64 May 9, 2017 | MSRT-001 | Moderate |
| . | 2017-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4019213) | MS17-MAY6 | Important |
| . | 2017-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4022726) | MS17-JUN2 | Critical |
| . | 2017-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4022717) | MS17-JUN2 | Critical |
| . | 2017-06 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4022730) | MS17-JUN4 | Critical |
| . | 2017-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4025336) | MS17-JUL2 | Critical |
| . | 2017-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4025333) | MS17-JUL2 | Critical |
| . | 2017-07 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4025376) | MS17-JUL4 | Critical |
| . | 2017-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4034681) | MS17-AUG1 | Critical |
| . | 2017-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4034672) | MS17-AUG1 | Critical |
| . | 2017-08 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4034662) | MS17-AUG3 | Critical |
| . | 2017-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4038792) | MS17-SEP1 | Critical |
| . | 2017-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4038793) | MS17-SEP1 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4038806) | MS17-SEP3 | Critical |
| . | 2017-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4041687) | MS17-OCT1 | Critical |
| . | 2017-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4041693) | MS17-OCT1 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4049179) | MS17-OCT7 | Critical |
| . | 2017-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4048958) | MS17-NOV1 | Critical |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4048951) | MS17-NOV4 | Critical |
| . | 2017-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4054519) | MS17-DEC1 | Critical |
| . | 2017-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4054522) | MS17-DEC1 | Important |
| . | Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4053577) | MS17-DEC5 | Critical |
| . | 2018-01 Security Only Quality Update for Windows 8.1 for x64-based Systems - Meltdown and Spectre (KB4056898) | MS18-JAN1 | Important |
| . | 2018-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems - Meltdown and Spectre (KB4056895) | MS18-JAN1 | Critical |
| . | Prerequisite Handler for Meltdown and Spectre | MS18-JAN5 | Critical |
| . | 2018-01 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4056887) | MS18-JAN6 | Critical |
| . | 2018-02 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4074595) | MS18-FEB1 | Critical |
| . | 2018-02 Security Only Quality Update for Windows 8.1 for x64-based Systems - Meltdown and SpectreKB4074597) | MS18-FEB2 | Critical |
| . | 2018-02 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems - Meltdown and Spectre(KB4074594) | MS18-FEB2 | Critical |
| . | Prerequisite Handler for Meltdown and Spectre | MS18-JAN5 | Critical |
| . | 2018-03 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4088785) | MS18-MAR1 | Critical |
| . | 2018-03 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4088876) | MS18-MAR2 | Important |
| . | 2018-03 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4088879) | MS18-MAR2 | Important |
| . | 2018-04 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4093115) | MS18-APR2 | Critical |
| . | 2018-04 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4093110) | MS18-APR1 | Critical |
| . | 2018-04 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4093114) | MS18-APR7 | Critical |
| . | 2018-05 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4103729) | MS18-MAY1 | Critical |
| . | 2018-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4103715) | MS18-MAY2 | Critical |
| . | 2018-05 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4103725) | MS18-MAY6 | Critical |
| . | 2018-06 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4287903) | MS18-JUN1 | Critical |
| . | 2018-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4284878) | MS18-JUN2 | Critical |
| . | 2018-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4284815) | MS18-JUN6 | Critical |
| . | 2018-07 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4338832) | MS18-JULY1 | Critical |
| . | 2018-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4338824) | MS18-JULY2 | Important |
| . | 2018-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4338815) | MS18-JULY6 | Important |
| . | 2018-08 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4343902) | MS18-AUG1 | Critical |
| . | 2018-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4343888) | MS18-AUG2 | Critical |
| . | 2018-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4343898) | MS18-AUG6 | Critical |
| . | 2018-09 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4457146) | MS18-SEP1 | Critical |
| . | 2018-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4457143) | MS18-SEP2 | Critical |
| . | 2018-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4457129) | MS18-SEP6 | Critical |
| . | 2018-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4462941) | MS18-OCT2 | Critical |
| . | 2018-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4462926) | MS18-OCT6 | Critical |
| . | 2018-11 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4467694) | MS18-NOV1 | Critical |
| . | 2018-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4467703) | MS18-NOV2 | Critical |
| . | 2018-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4467697) | MS18-NOV6 | Critical |
| . | 2018-11 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4477029) | MS18-NOV12 | Critical |
| . | 2018-12 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4471331) | MS18-DEC1 | Critical |
| . | 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 and Server 2012 R2 for x64 (KB4470639) | MS18-DEC8 | Important |
| . | 2018-12 Security and Quality Rollup for .NET Framework 4.5.2 for Windows 8.1 and Server 2012 R2 for x64 (KB4470622) | MS18-DEC8 | Important |
| . | 2018-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4471322) | MS18-DEC2 | Critical |
| . | 2018-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4471320) | MS18-DEC6 | Critical |
| . | 2019-01 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4480979) | MS19-JAN1 | Critical |
| . | 2019-01 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4480964) | MS19-JAN2 | Important |
| . | 2019-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4480963) | MS19-JAN6 | Important |
| . | 2019-02 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4487038) | MS19-FEB1 | Critical |
| . | 2019-02 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4487028) | MS19-FEB2 | Critical |
| . | 2019-02 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4487000) | MS19-FEB6 | Critical |
| . | 2019-03 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4489907) | MS19-MAR1 | Critical |
| . | 2019-03 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4489883) | MS19-MAR2 | Critical |
| . | 2019-03 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4489881) | MS19-MAR6 | Critical |
| . | 2019-04 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4493478) | MS19-APR1 | Critical |
| . | 2019-04 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4493467) | MS19-APR2 | Critical |
| . | 2019-04 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4493446) | MS19-APR6 | Critical |
| . | 2019-05 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4497932) | MS19-MAY1 | Critical |
| . | 2019-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4499165) | MS19-MAY2 | Critical |
| . | 2019-05 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4499151) | MS19-MAY6 | Critical |
| . | 2019-06 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4503308) | MS19-JUN1 | Critical |
| . | 2019-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4503290) | MS19-JUN2 | Critical |
| . | 2019-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4503276) | MS19-JUN6 | Critical |
| . | 2019-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4507457) (CVE-2019-0880) | MS19-JUL2 | Critical |
| . | 2019-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4507448) (CVE-2019-0880) | MS19-JUL6 | Critical |
| . | 2019-07 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4504418) | MS19-JUL12 | Critical |
| . | 2019-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4512489) | MS19-AUG2 | Critical |
| . | 2019-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4512488) | MS19-AUG6 | Critical |
| . | 2019-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4516064) | MS19-SEP2 | Critical |
| . | 2019-09 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4516115) | MS19-SEP1 | Critical |
| . | 2019-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4516067) | MS19-SEP6 | Critical |
| . | 2019-09 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4512938) | MS19-SEP12 | Critical |
| . | 2019-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4524156) | MS19-OCT14 | Critical |
| . | 2019-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4519990) | MS19-OCT2 | Critical |
| . | 2019-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4520005) | MS19-OCT6 | Critical |
| . | 2019-10 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4521864) | MS19-OCT15 | Critical |
| . | 2019-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4525243) | MS19-NOV6 | Critical |
| . | 2019-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4525250) | MS19-NOV2 | Critical |
| . | 2019-11 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4524445) | MS19-NOV12 | Critical |
| . | 2019-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4530730) | MS19-DEC2 | Critical |
| . | 2019-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4530702) | MS19-DEC6 | Critical |
| . | 2020-01 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4534309) | MS20-JAN2 | Critical |
| . | 2020-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4534297) | MS20-JAN6 | Critical |
| . | 2020-02 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4537759) | MS20-FEB1 | Critical |
| . | 2020-02 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4537821) | MS20-FEB6 | Critical |
| . | 2020-02 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4537803) | MS20-FEB2 | Critical |
| . | 2020-02 Security Update for Windows 8.1 for x64-based Systems (KB4502496) | MS20-FEB8 | Critical |
| . | 2020-03 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4541505) | MS20-MAR2 | Critical |
| . | 2020-03 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4541509) | MS20-MAR6 | Critical |
| . | 2020-03 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4540725) | MS20-MAR12 | Critical |
| . | Workaround for Font Parsing Remote Code Execution Vulnerability (Deployment-Only) | MS20-MAR25 | Critical |
| . | Patch for Undoing the changes of Workaround for Font Parsing Remote Code Execution Vulnerability | MS20-MAR25 | Critical |
| . | 2020-04 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4550970) | MS20-APR2 | Critical |
| . | 2020-04 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4550961) | MS20-APR6 | Critical |
| . | 2020-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4556853) | MS20-MAY2 | Critical |
| . | 2020-05 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4556846) | MS20-MAY6 | Critical |
| . | 2020-05 Update for Windows 8.1 for x64-based Systems (KB4557900) | MS20-MAY13 | Unrated |
| . | 2020-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4561673) | MS20-JUN2 | Critical |
| . | 2020-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4561666) | MS20-JUN6 | Critical |
| . | 2020-06 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4562253) | MS20-JUN12 | Critical |
| . | 2020-06 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4561600) | MS20-JUN1 | Critical |
| . | 2020-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4565540,KB4569509) (CVE-2020-1350) | MS20-JUL2 | Critical |
| . | 2020-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4565541,KB4569509) (CVE-2020-1350) | MS20-JUL6 | Critical |
| . | 2020-07 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB4566425) | MS20-JUL12 | Critical |
| . | 2020-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4571723) (CVE-2020-1464) (CVE-2020-1472) | MS20-AUG2 | Critical |
| . | 2020-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4571703) (CVE-2020-1464) (CVE-2020-1380) (CVE-2020-1472) | MS20-AUG6 | Critical |
| . | 2020-08 Security Update for Windows 8.1 for x64-based Systems (KB4578013) | MS20-AUG16 | Critical |
| . | 2020-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4577071) | MS20-SEP2 | Critical |
| . | 2020-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4577066) | MS20-SEP6 | Critical |
| . | 2020-09 Update for Windows 8.1 for x64-based Systems (KB4566371) | MS20-SEP16 | Low |
| . | 2020-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4580358) | MS20-OCT2 | Critical |
| . | 2020-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4580347) | MS20-OCT6 | Critical |
| . | 2020-10 Security Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4580325) | MS20-OCT1 | Critical |
| . | 2020-10 Update for Windows 8.1 for x64-based Systems (KB4578623) | MS20-OCT13 | Low |
| . | 2020-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4586823) (CVE-2020-17087) | MS20-NOV2 | Critical |
| . | 2020-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4586845) (CVE-2020-17087) | MS20-NOV6 | Critical |
| . | 2020-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4592495) | MS20-DEC2 | Important |
| . | 2020-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4592484) | MS20-DEC6 | Important |
| . | 2021-01 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4598275) | MS21-JAN2 | Critical |
| . | 2021-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4598285) | MS21-JAN6 | Critical |
| . | 2021-01 Security Update for Windows 8.1 for x64-based Systems (KB4535680) | MS21-JAN13 | Critical |
| . | 2021-02 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB4601349) | MS21-FEB2 | Critical |
| . | 2021-02 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4601384) | MS21-FEB6 | Critical |
| . | 2021-03 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5000853) (CVE-2021-27077) | MS21-MAR2 | Critical |
| . | 2021-03 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5000848) (CVE-2021-27077) (CVE-2021-26411) | MS21-MAR6 | Critical |
| . | 2021-04 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5001393) (CVE-2021-28437) (CVE-2021-27091) | MS21-APR2 | Critical |
| . | 2021-04 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5001382) (CVE-2021-28437) | MS21-APR6 | Critical |
| . | 2021-04 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5001403) | MS21-APR12 | Critical |
| . | 2021-04 Update for Windows 8.1 for x64-based Systems (KB4601275) | MS21-APR13 | Low |
| . | 2021-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5003220) | MS21-MAY2 | Critical |
| . | 2021-05 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5003209) | MS21-MAY6 | Critical |
| . | 2021-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5003681) | MS21-JUN2 | Critical |
| . | 2021-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5003671) | MS21-JUN6 | Critical |
| . | 2021-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5004958) (CVE-2021-34527) | MS21-JUL12 | Critical |
| . | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5004954) (CVE-2021-34527) | MS21-JUL14 | Critical |
| . | 2021-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5004285) | MS21-JUL2 | Critical |
| . | 2021-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5004298) | MS21-JUL6 | Critical |
| . | 2021-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5005106) (CVE-2021-36936) (CVE-2021-36942) | MS21-AUG2 | Critical |
| . | 2021-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5005076) (CVE-2021-36936) (CVE-2021-36942) | MS21-AUG6 | Critical |
| . | 2021-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5005627) (CVE-2021-40444) | MS21-SEP2 | Critical |
| . | 2021-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5005613) (CVE-2021-40444) | MS21-SEP6 | Critical |
| . | 2021-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5006729) (CVE-2021-40449) (CVE-2021-40469) (CVE-2021-41335) (CVE-2021-41338) | MS21-OCT2 | Important |
| . | 2021-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5006714) (CVE-2021-40449) (CVE-2021-40469) (CVE-2021-41335) (CVE-2021-41338) | MS21-OCT6 | Important |
| . | 2021-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5007255) (CVE-2021-41371) (CVE-2021-38631) | MS21-NOV2 | Critical |
| . | 2021-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5007247) (CVE-2021-41371) (CVE-2021-38631) | MS21-NOV6 | Critical |
| . | 2021-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5008285) (CVE-2021-41333) (CVE-2021-43883) (CVE-2021-43893) | MS21-DEC2 | Critical |
| . | 2021-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5008263) (CVE-2021-41333) (CVE-2021-43883) (CVE-2021-43893) | MS21-DEC6 | Critical |
| . | 2022-01 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5009595) (CVE-2022-21919) (CVE-2022-21836) | MS22-JAN2 | Critical |
| . | 2022-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5009624) (CVE-2022-21919) (CVE-2022-21836) | MS22-JAN6 | Critical |
| . | 2022-02 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5010395) (CVE-2022-21989) | MS22-FEB2 | Important |
| . | 2022-02 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5010419) (CVE-2022-21989) | MS22-FEB6 | Important |
| . | 2022-03 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5011560) (CVE-2022-21990) (CVE-2022-24459) | MS22-MAR2 | Important |
| . | 2022-03 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5011564) (CVE-2022-21990) (CVE-2022-24459) | MS22-MAR6 | Important |
| . | 2022-04 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5012639) (CVE-2022-26904) (CVE-2022-24521) | MS22-APR2 | Critical |
| . | 2022-04 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5012670) (CVE-2022-26904) (CVE-2022-24521) | MS22-APR6 | Critical |
| . | 2022-04 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5012672) | MS22-APR12 | Critical |
| . | 2022-05 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5014001) (CVE-2022-26925) | MS22-MAY2 | Critical |
| . | 2022-05 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5014025) | MS22-MAY12 | Critical |
| . | 2022-05 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5014011) (CVE-2022-26925) | MS22-MAY6 | Critical |
| . | 2022-06 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5014746) (CVE-2022-30190) | MS22-JUN2 | Critical |
| . | 2022-06 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5014738) (CVE-2022-30190) | MS22-JUN6 | Critical |
| . | 2022-07 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5015877) (CVE-2022-22047) | MS22-JUL2 | Critical |
| . | 2022-07 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5016264) | MS22-JUL12 | Critical |
| . | 2022-07 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5015874) (CVE-2022-22047) | MS22-JUL6 | Critical |
| . | 2022-08 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5016683) (CVE-2022-34713) | MS22-AUG2 | Critical |
| . | 2022-08 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5016681) (CVE-2022-34713) | MS22-AUG6 | Critical |
| . | 2022-08 Security Update for Windows 8.1 for x64-based Systems (KB5012170) | MS22-AUG12 | Critical |
| . | 2022-09 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5017365) (CVE-2022-37969) | MS22-SEP2 | Critical |
| . | 2022-09 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5017367) (CVE-2022-37969) | MS22-SEP12 | Critical |
| . | 2022-09 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5017398) | MS22-SEP13 | Critical |
| . | 2022-10 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5018476) (CVE-2022-41033) | MS22-OCT2 | Critical |
| . | 2022-10 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5018474) (CVE-2022-41033) | MS22-OCT6 | Critical |
| . | 2022-10 Servicing Stack Update for Windows 8.1 for x64-based Systems (KB5018922) | MS22-OCT13 | Critical |
| . | 2022-11 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5020010) (CVE-2022-41128) (CVE-2022-41073) (CVE-2022-41125) (CVE-2022-44698) | MS22-NOV2 | Critical |
| . | 2022-11 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5020023) (CVE-2022-41128) (CVE-2022-41073) (CVE-2022-41125) (CVE-2022-44698) | MS22-NOV6 | Critical |
| . | 2022-12 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5021296) | MS22-DEC2 | Critical |
| . | 2022-12 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5021294) | MS22-DEC6 | Critical |
| . | 2023-01 Security Only Quality Update for Windows 8.1 for x64-based Systems (KB5022346) (CVE-2023-21674) | MS23-JAN2 | Critical |
| . | 2023-01 Security Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB5022352) (CVE-2023-21674) | MS23-JAN6 | Critical |
| . | Update for Windows 8.1 for x64-based Systems (KB2898742) | MSWU-711 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2883200) | MSWU-712 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2894029) | MSWU-712 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2894179) | MSWU-712 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2887595) | MSWU-730 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2898514) | MSWU-730 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2901101) | MSWU-730 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2906956) | MSWU-730 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2908174) | MSWU-730 | Unrated |
| . | Security Update for Windows 8.1 for x64-based Systems (KB2862152) | MSWU-731 | Unrated |
| . | Update for Microsoft Camera Codec Pack for Windows 8.1 for x64-based Systems (KB2899189) | MSWU-736 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2903939) | MSWU-739 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2911134) | MSWU-739 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2919394) | MSWU-790 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2928680) | MSWU-818 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2939087) | MSWU-827 | Unrated |
| . | Security Update for Windows 8.1 for x64-based Systems (KB2962140) | MSWU-856 | Unrated |
| . | Update for Microsoft .NET Native for Windows 8.1 for x64-based Systems (KB2954879) | MSWU-860 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2962409) | MSWU-906 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2973448) | MSWU-906 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2938066) (Deployment-Only) | MSWU-928 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2967917) | MSWU-953 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2975061) (Deployment-Only) | MSWU-963 | Unrated |
| . | Security Update for Windows 8.1 for x64-based Systems (KB2973351) | MSWU-967 | Low |
| . | Update for Windows 8.1 for x64-based Systems (KB3103709) | MSWU-2084 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3103616) | MSWU-2111 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3125424) | MSWU-2112 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3145384) | MSWU-2113 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3146604) | MSWU-2114 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3146751) | MSWU-2115 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3149157) | MSWU-2116 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3187022) | MSWU-2126 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3182203) | MSWU-2133 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3185279) | MSWU-2136 | Unrated |
| . | Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB3192665) | MSWU-2143 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2976978) | MSWU-2037 | Unrated |
| . | Security Update for Windows 8.1 for x64-based Systems (KB3174644) | MSWU-2119 | Critical |
| . | October, 2016 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB3192404) | MSWU-2165 | Unrated |
| . | Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB3200006) | MSWU-2171 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3192321) | MSWU-2166 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB2976978) | MSWU-2198 | Unrated |
| . | November 2016 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB3197875) | MSWU-2214 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB3203884) | MSWU-2261 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems V21 (KB2976978) | MSWU-2198 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4012864) | MSWU-2357 | Unrated |
| . | Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4012219) | MSWU-2355 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4016754) (Deployment-Only) | MSWU-2367 | Unrated |
| . | April, 2017 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4015553) | MSWU-2404 | Unrated |
| . | 2017-05 Preview of Monthly Quality Rollup Update includes WannaCrypt Fix(MS17-010) and May Month Quality Rollup for Windows 8.1 for x64-based Systems (KB4019217) | MSWU-2463 | Unrated |
| . | Update and 404 Error While Printing a Frame Fix for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4032782) | MSWU-2507 | Unrated |
| . | 2017-06 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4022720) - Petya ransomware attack (CVE-2017-0199) | MSWU-2514 | Unrated |
| . | 2017-08 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4034663) | MSWU-2599 | Unrated |
| . | 2017-08 Update for Windows 8.1 for x64-based Systems (KB4039871) | MSWU-2609 | Unrated |
| . | 2017-09 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4038774) | MSWU-2670 | Unrated |
| . | 2017-10 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4041685) | MSWU-2700 | Unrated |
| . | Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4051613) | MSWU-2708 | Unrated |
| . | 2017-11 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4050946) | MSWU-2761 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4049068) | MSWU-2763 | Unrated |
| . | 2017-11 Update for Windows 8.1 for x64-based Systems (KB4055038) | MSWU-2764 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4051956) | MSWU-2799 | Unrated |
| . | 2018-01 Update for Windows 8.1 for x64-based Systems (KB4073576) | MSWU-2803 | Unrated |
| . | 2018-01 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems - Meltdown and Spectre (KB4057401) | MSWU-2804 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4074837) | MSWU-2833 | Unrated |
| . | 2018-02 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4075212) | MSWU-2843 | Unrated |
| . | Disable Windows Automatic Update (Deployment-Only) | MSWU-2853 | Unrated |
| . | 2018-03 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4088882) | MSWU-2867 | Unrated |
| . | 2018-04 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4093121) | MSWU-2887 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4093753) | MSWU-2888 | Unrated |
| . | 2018-05 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4103724) | MSWU-2917 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4130978) | MSWU-2921 | Unrated |
| . | 2018-06 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4284863) | MSWU-2946 | Unrated |
| . | 2018-07 Update for Windows 8.1 for x64-based Systems (KB4345424) | MSWU-2961 | Unrated |
| . | 2018-07 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4338831) | MSWU-2971 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4339284) | MSWU-2973 | Unrated |
| . | 2018-08 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4343891) | MSWU-3007 | Unrated |
| . | Fix Component Store Corruption (Deployment-Only) | MSWU-3025 | Unrated |
| . | 2018-09 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4457133) | MSWU-3036 | Unrated |
| . | Update for Adobe Flash Player for Windows 8.1 for x64-based Systems (KB4462930) | MSWU-3044 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4462901) | MSWU-3047 | Unrated |
| . | 2018-10 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4462921) | MSWU-3048 | Unrated |
| . | Update for Windows 8.1 for x64-based Systems (KB4468323) | MSWU-3076 | Unrated |
| . | 2018-11 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4467695) | MSWU-3077 | Unrated |
| . | 2019-01 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4480969) | MSWU-3117 | Unrated |
| . | Update for Windows Management Framework 5.1 for Windows 8.1 (KB3191564) | MSWU-3156 | Unrated |
| . | 2019-02 Update for Windows 8.1 for x64-based Systems (KB4486459) | MSWU-3166 | Unrated |
| . | 2019-02 Update for Windows 8.1 for x64-based Systems (KB4491113) | MSWU-3168 | Unrated |
| . | 2019-02 Update for Windows 8.1 for x64-based Systems (KB4490512) | MSWU-3170 | Unrated |
| . | 2019-02 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4487016) | MSWU-3176 | Unrated |
| . | 2019-03 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4489893) | MSWU-3215 | Unrated |
| . | 2019-03 Update for Windows 8.1 for x64-based Systems (KB4490128) | MSWU-3234 | Unrated |
| . | Sophos Antivirus Detector (Deployment-Only) | MSWU-3242 | Unrated |
| . | 2019-04 Update for Windows 8.1 for x64-based Systems (KB4496878) | MSWU-3250 | Unrated |
| . | 2019-04 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4493443) | MSWU-3245 | Unrated |
| . | 2019-05 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4499182) | MSWU-3274 | Unrated |
| . | 2019-05 Update for Windows 8.1 for x64-based Systems (KB4501226) | MSWU-3277 | Unrated |
| . | 2019-05 Update for Windows 8.1 for x64-based Systems (KB4505050) | MSWU-3282 | Unrated |
| . | 2019-06 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4503283) | MSWU-3298 | Unrated |
| . | 2019-06 Update for Windows 8.1 for x64-based Systems (KB4508773) | MSWU-3300 | Unrated |
| . | 2019-07 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4507463) | MSWU-3306 | Unrated |
| . | 2019-07 Update for Windows 8.1 for x64-based Systems (KB4507704) | MSWU-3307 | Unrated |
| . | 2019-07 Update for Internet Explorer 11 for Windows 8.1 for x64-based Systems (KB4510979) | MSWU-3308 | Unrated |
| . | 2019-08 Update for Windows 8.1 for x64-based Systems (KB4517298) | MSWU-3322 | Unrated |
| . | 2019-08 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4512478) | MSWU-3323 | Unrated |
| . | 2019-09 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4516041) | MSWU-3332 | Unrated |
| . | 2019-10 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4520012) | MSWU-3342 | Unrated |
| . | 2019-10 Update for Windows 8.1 for x64-based Systems (KB4519108) | MSWU-3344 | Unrated |
| . | 2019-11 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4525252) | MSWU-3350 | Unrated |
| . | 2020-01 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4534324) | MSWU-3360 | Unrated |
| . | 2020-02 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4537819) | MSWU-3369 | Unrated |
| . | Disable Check For Updates (Deployment-Only) | MSWU-2853 | Unrated |
| . | Enable Windows Automatic Update (Deployment-Only) | MSWU-2853 | Unrated |
| . | Enable Check For Updates (Deployment-Only) | MSWU-2853 | Unrated |
| . | 2020-03 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4541334) | MSWU-3377 | Unrated |
| . | 2020-04 Preview of Monthly Quality Rollup for Windows 8.1 for x64-based Systems (KB4550958) | MSWU-3384 | Unrated |
| . | 2020-06 Update for Windows 8.1 for x64-based Systems (KB4567521) | MSWU-3393 | Unrated |
| . | Update for the new Microsoft Edge for Windows 8.1 x64 (KB4567409) | MSWU-3394 | Unrated |
| . | Update for Removal of Adobe Flash Player for Windows 8.1 for x64-based systems (KB4577586) | MSWU-3420 | Unrated |
| . | 2020-11 Update for Windows 8.1 for x64-based Systems (KB4594439) | MSWU-3422 | Unrated |
| . | 2021-03 Update for Windows 8.1 for x64-based Systems (KB5001640) | MSWU-3436 | Unrated |
| . | 2021-07 Update for Windows 8.1 for x64-based Systems (KB5005391) | MSWU-3451 | Unrated |
| . | 2021-11 Update for Windows 8.1 for x64-based Systems (KB5008603) | MSWU-3466 | Unrated |
| . | log-4j mitigation helper (Deployment-Only) | MSWU-3475 | Unrated |
| . | 2022-01 Update for Windows 8.1 for x64-based Systems (KB5010215) | MSWU-3479 | Unrated |
| . | 2022-01 Update for Windows 8.1 for x64-based Systems (KB5010794) | MSWU-3483 | Unrated |
| . | 2022-05 Update for Windows 8.1 for x64-based Systems (KB5014986) | MSWU-3500 | Unrated |
| . | 2022-08 Extended Security Updates (ESU) Licensing Preparation Package for Windows 8.1 for x64-based Systems (KB5017220) (ESU) | MSWU-3519 | Critical |
| . | 2022-10 Update for Windows 8.1 for x64-based Systems (KB5020447) | MSWU-3526 | Unrated |
| . | 2022-11 Update for Windows 8.1 for x64-based Systems (KB5021653) | MSWU-3535 | Unrated |
| . | Windows Driver Installer (Online) (Deployment-Only) | MSWU-2408 | Moderate |
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