Several users are experiencing various issues with system startup after installing the KB5077181 update for Windows 11.

Microsoft says it has resolved a Windows 11 bug that caused some commercial systems to fail to boot with an "UNMOUNTABLE_BOOT_VOLUME" error after installing recent security updates, with the fix ...

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors after installing the January 2026 Patch Tuesday security updates. The issue ...

A few Windows 11 users have been affected by a bug from the latest Windows 11 security update, which resulted in their PCs refusing to turn on. According to an AskWoody forum post, there were reports ...

Microsoft's KB5077181 security update has caused endless restart loops and system lockouts for Windows 11 users, with no ...

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems besetting users, specifically Outlook becoming “ unusable .” And it comes a week ...

Microsoft’s Patch Fixes Are Breaking Windows, Forcing a Second Emergency Update Your email has been sent Microsoft’s own fixes have become its biggest problem, forcing the company to issue a second ...

We're back to settle what has become an age-old debate: does Windows 11 or Windows 10 deliver better gaming performance? Microsoft has been rolling out Windows 11 25H2 for the past few months, an ...

This month's non-security update for Windows 11 is here (KB5074105), and it packs a typically large changelog with new features, fixes, and improvements. The January 2026 non-security update for ...

Microsoft releases February 2026 Patch Tuesday updates KB5077181 and KB5075941 for Windows 11. Learn about the latest security fixes and improvements.

Microsoft releases KB5077178, KB5077180, and KB5077374 with WinRE upgrades, Secure Boot updates, and Dynamic Setup improvements.