Windows 11 KB5077181 fixes boot failures linked to failed updates

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 ...

Windows 11 update KB5077181 is causing critical boot loops for some users1 1

KB5077181 is causing devices to restart over 15 times in an infinite loop. Users also report network issues and error codes.
WinBuzzer

Windows 11 Update KB5077181 Traps Users in Boot Loops

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

New Windows 11 update causing critical failures and boot loops for users

Users report that the latest Windows 11 update, KB5039212, is causing serious problems, including boot loops and system crashes. Here's what we know.
PC Gamer

Microsoft says the Windows 11 boot failure bug is linked to another buggy update: 'This issue can occur on devices that failed to install the December 2025 security update and ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.