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

Windows KB5077181 reportedly causes boot loops, SENS login errors, and DHCP internet failures, but there's a workaround ...

Microsoft's KB5077181 security update has caused endless restart loops and system lockouts for Windows 11 users, with no official fix released as of February 13.

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’s first big update of 2026 was supposed to harden security and smooth out rough edges. Instead, it has left some users staring at blank desktops, stalled shutdown screens, and boot loops ...