October 14, 2025—KB5066791 (OS Builds 19044.6456 and 19045.6456)

October 14, 2025—KB5066791 OS Builds 19044.6456 and 19045.6456 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...

March 11, 2025—KB5053596 (OS Build 17763.7009) - EXPIRED

March 11, 2025—KB5053596 OS Build 17763.7009 - 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. Support for Windows 1...