September 23, 2025—KB5065790 (OS Build 22631.5984) Preview

September 23, 2025—KB5065790 OS Build 22631.5984 Preview Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices...

September 9, 2025—KB5065427 (OS Build 14393.8422)

September 9, 2025—KB5065427 OS Build 14393.8422 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the...

May 16, 2025—Hotpatch KB5061258 (OS Build 26100.3983) Out-of-band

May 16, 2025—Hotpatch KB5061258 OS Build 26100.3983 Out-of-band For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview, see the update history for Windows 11, version 24H2, and the release notes for hotpatch on...

March 11, 2025—KB5053598 (OS Build 26100.3476)

March 11, 2025—KB5053598 OS Build 26100.3476 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows 11, version 24H2, see its update history page. Follow @WindowsUpdate to find out when new content is...

November 12, 2024—KB5046615 (OS Build 17763.6532) - EXPIRED

November 12, 2024—KB5046615 OS Build 17763.6532 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. 11/17/20 For...

October 8, 2024—KB5044273 (OS Builds 19044.5011 and 19045.5011) - EXPIRED

October 8, 2024—KB5044273 OS Builds 19044.5011 and 19045.5011 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. ---...

October 8, 2024—KB5044277 (OS Build 17763.6414) - EXPIRED

October 8, 2024—KB5044277 OS Build 17763.6414 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. 11/17/20 For...

September 10, 2024—KB5043080 (OS Build 26100.1742)

September 10, 2024—KB5043080 OS Build 26100.1742 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard...

September 10, 2024—KB5043067 (OS Build 22000.3197)

September 10, 2024—KB5043067 OS Build 22000.3197 07/09/24---END OF SERVICE NOTICE ---IMPORTANT All editions of Windows 11, version 21H2 will reach end of service on October 8, 2024. After that date, these devices will not receive monthly security and non-security updates. These updates contain...

June 11, 2024—Hotpatch KB5039330 (OS Build 20348.2522)

June 11, 2024—Hotpatch KB5039330 OS Build 20348.2522 Improvements and fixes This security update includes quality improvements. When you install this KB: This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. If y...

June 11, 2024—KB5039236 (OS Build 25398.950)

June 11, 2024—KB5039236 OS Build 25398.950 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update history page. Improvements This security update...

June 11, 2024—KB5039217 (OS Build 17763.5936) - EXPIRED

June 11, 2024—KB5039217 OS Build 17763.5936 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. 11/17/20 For informati...

May 23, 2024—KB5039705 (OS Build 17763.5830) Out-of-band - EXPIRED

May 23, 2024—KB5039705 OS Build 17763.5830 Out-of-band - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. ​​​​​​​...

April 9, 2024—KB5036899 (OS Build 14393.6897) - EXPIRED

April 9, 2024—KB5036899 OS Build 14393.6897 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- 11/19/20 For...

January 9, 2024—KB5034119 (OS Build 14393.6614) - EXPIRED

January 9, 2024—KB5034119 OS Build 14393.6614 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- 11/19/20 For...

March 12, 2024—KB5035858 (OS Build 10240.20526) - EXPIRED

March 12, 2024—KB5035858 OS Build 10240.20526 - EXPIRED EXPIRATION NOTICEIMPORTANT As of January 27, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- 12/8/20 For...

March 12, 2024—KB5035853 (OS Builds 22621.3296 and 22631.3296)

March 12, 2024—KB5035853 OS Builds 22621.3296 and 22631.3296 2/27/24 IMPORTANT: New dates for the end of non-security updates for Windows 11, version 22H2The new end date is June 24, 2025 for Windows 11, version 22H2 Enterprise, Education, IoT Enterprise, and Enterprise multi-session editions...

March 12, 2024—KB5035849 (OS Build 17763.5576) - EXPIRED

March 12, 2024—KB5035849 OS Build 17763.5576 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. ​​​​​​​ NEW 3/25/24...

March 12, 2024— Hotpatch KB5035959 (OS Build 20348.2333)

March 12, 2024— Hotpatch KB5035959 OS Build 20348.2333 Improvements and fixes This security update includes quality improvements. When you install this KB: This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release. If...

March 12, 2024—KB5035855 (OS Build 14393.6796) - EXPIRED

March 12, 2024—KB5035855 OS Build 14393.6796 - EXPIRED EXPIRATION NOTICEIMPORTANT As of March 31, 2026, this update is no longer available from the Microsoft Update Catalog or other release channels. We recommend that you update your devices to the latest version of Windows. --- NEW 3/22/24...