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Windows 8.1 and Windows Server 2012 R2
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End of Support
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June 9, 2026—KB5094041 (Monthly Rollup)
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May 12, 2026—KB5087471 (Monthly Rollup)
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April 14, 2026—KB5082126 (Monthly Rollup)
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March 10, 2026—KB5078774 (Monthly Rollup)
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February 10, 2026—KB5075970 (Monthly Rollup)
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January 13, 2026—KB5073696 (Monthly Rollup)
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December 18, 2025—KB5074978 (Monthly Rollup) Out-of-band
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December 9, 2025—KB5071503 (Monthly Rollup)
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November 11, 2025—KB5068905 (Monthly Rollup)
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October 23, 2025—KB5070886 (Monthly Rollup) Out-of-band
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October 14, 2025—KB5066873 (Monthly Rollup)
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September 9, 2025—KB5065507 (Monthly Rollup)
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August 12, 2025—KB5063950 (Monthly Rollup)
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July 8, 2025—KB5062597 (Monthly Rollup)
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June 10, 2025—KB5061018 (Monthly Rollup)
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May 13, 2025—KB5058403 (Monthly Rollup)
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April 8, 2025—KB5055557 (Monthly Rollup)
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March 11, 2025—KB5053887 (Monthly Rollup)
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February 11, 2025—KB5052042 (Monthly Rollup)
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January 14, 2025—KB5050048 (Monthly Rollup)
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December 10, 2024—KB5048735 (Monthly Rollup)
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November 12, 2024—KB5046682 (Monthly Rollup)
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October 8, 2024—KB5044343 (Monthly Rollup)
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September 10, 2024—KB5043138 (Monthly Rollup)
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August 13, 2024—KB5041828 (Monthly Rollup)
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July 9, 2024—KB5040456 (Monthly Rollup)
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June 11, 2024—KB5039294 (Monthly Rollup)
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May 14, 2024—KB5037823 (Monthly Rollup)
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April 9, 2024—KB5036960 (Monthly Rollup)
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March 12, 2024—KB5035885 (Monthly Rollup)
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February 13, 2024—KB5034819 (Monthly Rollup)
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January 9, 2024—KB5034171 (Monthly Rollup)
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December 12, 2023—KB5033420 (Monthly Rollup)
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November 14, 2023—KB5032249 (Monthly Rollup)
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October 10, 2023—KB5031419 (Monthly Rollup)
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October 10, 2023—KB5031407 (Security-only update)
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September 12, 2023—KB5030269 (Monthly Rollup)
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September 12, 2023—KB5030287 (Security-only update)
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August 8, 2023—KB5029312 (Monthly Rollup)
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August 8, 2023—KB5029304 (Security-only update)
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July 11, 2023—KB5028228 (Monthly Rollup)
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July 11, 2023—KB5028223 (Security-only update)
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June 13, 2023—KB5027271 (Monthly Rollup)
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June 13, 2023—KB5027282 (Security-only update)
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May 9, 2023—KB5026415 (Monthly Rollup)
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May 9, 2023—KB5026409 (Security-only update)
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April 11, 2023—KB5025285 (Monthly Rollup)
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April 11, 2023—KB5025288 (Security-only update)
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March 14, 2023—KB5023765 (Monthly Rollup)
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March 14, 2023—KB5023764 (Security-only update)
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February 14, 2023—KB5022899 (Monthly Rollup)
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February 14, 2023—KB5022894 (Security-only update)
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January 10, 2023—KB5022352 (Monthly Rollup)
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January 10, 2023—KB5022346 (Security-only update)
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December 13, 2022—KB5021294 (Monthly Rollup)
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December 13, 2022—KB5021296 (Security-only update)
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KB5021653: Out-of-band update for Windows Server 2012 R2: November 17, 2022
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November 8, 2022—KB5020023 (Monthly Rollup)
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November 8, 2022—KB5020010 (Security-only update)
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October 11, 2022—KB5018474 (Monthly Rollup)
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October 11, 2022—KB5018476 (Security-only update)
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September 13, 2022—KB5017367 (Monthly Rollup)
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September 13, 2022—KB5017365 (Security-only update)
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August 9, 2022—KB5016681 (Monthly Rollup)
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August 9, 2022—KB5016683 (Security-only update)
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July 12, 2022—KB5015874 (Monthly Rollup)
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July 12, 2022—KB5015877 (Security-only update)
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June 14, 2022—KB5014738 (Monthly Rollup)
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June 14, 2022—KB5014746 (Security-only update)
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KB5014986: Authentication failures occur after the May 10, 2022 update is installed on domain controllers running Windows Server 2012 R2
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May 10, 2022—KB5014011 (Monthly Rollup)
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May 10, 2022—KB5014001 (Security-only update)
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April 12, 2022—KB5012670 (Monthly Rollup)
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April 12, 2022—KB5012639 (Security-only update)
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March 8, 2022—KB5011564 (Monthly Rollup)
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March 8, 2022—KB5011560 (Security-only update)
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February 8, 2022—KB5010419 (Monthly Rollup)
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February 8, 2022—KB5010395 (Security-only update)
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KB5010794: Out-of-band update for Windows 8.1 and Windows Server 2012 R2: January 17, 2022
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January 11, 2022—KB5009624 (Monthly Rollup)
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January 11, 2022—KB5009595 (Security-only update)
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December 14, 2021—KB5008263 (Monthly Rollup)
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December 14, 2021—KB5008285 (Security-only update)
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November 9, 2021—KB5007247 (Monthly Rollup)
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November 9, 2021—KB5007255 (Security-only update)
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October 12, 2021—KB5006714 (Monthly Rollup)
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October 12, 2021—KB5006729 (Security-only update)
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September 14, 2021—KB5005613 (Monthly Rollup)
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September 14, 2021—KB5005627 (Security-only update)
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August 10, 2021—KB5005076 (Monthly Rollup)
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August 10, 2021—KB5005106 (Security-only update)
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July 13, 2021—KB5004298 (Monthly Rollup)
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July 13, 2021—KB5004285 (Security-only update)
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July 6, 2021—KB5004954 (Monthly Rollup) Out-of-band
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July 6, 2021—KB5004958 (Security-only update) Out-of-band
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June 8, 2021—KB5003671 (Monthly Rollup)
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June 8, 2021—KB5003681 (Security-only update)
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May 11, 2021—KB5003209 (Monthly Rollup)
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May 11, 2021—KB5003220 (Security-only update)
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April 13, 2021—KB5001382 (Monthly Rollup)
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April 13, 2021—KB5001393 (Security-only update)
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March 9, 2021—KB5000848 (Monthly Rollup)
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March 9, 2021—KB5000853 (Security-only update)
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February 9, 2021—KB4601384 (Monthly Rollup)
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February 9, 2021—KB4601349 (Security-only update)
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January 12, 2021—KB4598285 (Monthly Rollup)
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January 12, 2021—KB4598275 (Security-only update)
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December 8, 2020—KB4592495 (Security-only update)
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December 8, 2020—KB4592484 (Monthly Rollup)
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November 10, 2020—KB4586845 (Monthly Rollup)
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November 10, 2020—KB4586823 (Security-only update)
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October 13, 2020—KB4580358 (Security-only update)
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October 13, 2020—KB4580347 (Monthly Rollup)
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September 8, 2020—KB4577066 (Monthly Rollup)
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September 8, 2020—KB4577071 (Security-only update)
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August 11, 2020—KB4571703 (Monthly Rollup)
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August 11, 2020—KB4571723 (Security-only update)
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July 14, 2020—KB4565541 (Monthly Rollup)
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July 14, 2020—KB4565540 (Security-only update)
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June 9, 2020—KB4561673 (Security-only update)
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June 9, 2020—KB4561666 (Monthly Rollup)
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May 12, 2020—KB4556846 (Monthly Rollup)
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May 12, 2020—KB4556853 (Security-only update)
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April 21, 2020—KB4550958 (Preview of Monthly Rollup)
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April 14, 2020—KB4550970 (Security-only update)
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April 14, 2020—KB4550961 (Monthly Rollup)
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March 17, 2020—KB4541334 (Preview of Monthly Rollup)
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March 10, 2020—KB4541509 (Monthly Rollup)
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March 10, 2020—KB4541505 (Security-only update)
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February 25, 2020—KB4537819 (Preview of Monthly Rollup)
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February 11, 2020—KB4537821 (Monthly Rollup)
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February 11, 2020—KB4537803 (Security-only update)
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January 23, 2020—KB4534324 (Preview of Monthly Rollup)
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January 14, 2020—KB4534309 (Security-only update)
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January 14, 2020—KB4534297 (Monthly Rollup)
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December 10, 2019—KB4530702 (Monthly Rollup)
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December 10, 2019—KB4530730 (Security-only update)
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November 19, 2019—KB4525252 (Preview of Monthly Rollup)
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November 12, 2019—KB4525243 (Monthly Rollup)
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November 12, 2019—KB4525250 (Security-only update)
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October 15, 2019—KB4520012 (Preview of Monthly Rollup)
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October 8, 2019—KB4519990 (Security-only update)
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October 8, 2019—KB4520005 (Monthly Rollup)
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October 3, 2019—KB4524156 (Monthly Rollup)
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September 24, 2019—KB4516041 (Preview of Monthly Rollup)
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September 10, 2019—KB4516064 (Security-only update)
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September 10, 2019—KB4516067 (Monthly Rollup)
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August 17, 2019—KB4512478 (Preview of Monthly Rollup)
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August 13, 2019—KB4512488 (Monthly Rollup)
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August 13, 2019—KB4512489 (Security-only update)
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July 16, 2019—KB4507463 (Preview of Monthly Rollup)
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July 9, 2019—KB4507457 (Security-only update)
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July 9, 2019—KB4507448 (Monthly Rollup)
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June 20, 2019—KB4503283 (Preview of Monthly Rollup)
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June 11, 2019—KB4503276 (Monthly Rollup)
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June 11, 2019—KB4503290 (Security-only update)
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May 23, 2019—KB4499182 (Preview of Monthly Rollup)
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May 14, 2019—KB4499151 (Monthly Rollup)
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May 14, 2019—KB4499165 (Security-only update)
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April 25, 2019—KB4493443 (Preview of Monthly Rollup)
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April 9, 2019—KB4493467 (Security-only update)
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April 9, 2019—KB4493446 (Monthly Rollup)
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March 19, 2019—KB4489893 (Preview of Monthly Rollup)
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March 12, 2019—KB4489881 (Monthly Rollup)
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March 12, 2019—KB4489883 (Security-only update)
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February 19, 2019—KB4487016 (Preview of Monthly Rollup)
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February 12, 2019—KB4487028 (Security-only update)
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February 12, 2019—KB4487000 (Monthly Rollup)
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January 15, 2019—KB4480969 (Preview of Monthly Rollup)
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January 8, 2019—KB4480964 (Security-only update)
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January 8, 2019—KB4480963 (Monthly Rollup)
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December 11, 2018—KB4471322 (Security-only update)
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December 11, 2018—KB4471320 (Monthly Rollup)
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November 27, 2018—KB4467695 (Preview of Monthly Rollup)
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November 13, 2018—KB4467703 (Security-only update)
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November 13, 2018—KB4467697 (Monthly Rollup)
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October 18, 2018—KB4462921 (Preview of Monthly Rollup)
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October 9, 2018—KB4462941 (Security-only update)
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October 9, 2018—KB4462926 (Monthly Rollup)
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September 20, 2018—KB4457133 (Preview of Monthly Rollup)
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September 11, 2018—KB4457143 (Security-only update)
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September 11, 2018—KB4457129 (Monthly Rollup)
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August 30, 2018—KB4343891 (Preview of Monthly Rollup)
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August 14, 2018—KB4343898 (Monthly Rollup)
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August 14, 2018—KB4343888 (Security-only update)
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July 18, 2018—KB4338831 (Preview of Monthly Rollup)
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July 10, 2018—KB4338815 (Monthly Rollup)
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July 10, 2018—KB4338824 (Security-only update)
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June 21, 2018—KB4284863 (Preview of Monthly Rollup)
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June 12, 2018—KB4284815 (Monthly Rollup)
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June 12, 2018—KB4284878 (Security-only update)
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May 17, 2018—KB4103724 (Preview of Monthly Rollup)
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May 8, 2018—KB4103725 (Monthly Rollup)
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May 8, 2018—KB4103715 (Security-only update)
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April 17, 2018—KB4093121 (Preview of Monthly Rollup)
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April 10, 2018—KB4093114 (Monthly Rollup)
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