Users report install errors and system bugs after Windows 11’s Feb update

Windows 11’s February update, KB5077181, is failing to install for some users and causing a range of system issues,.

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 ...
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 ...

Windows 11 appears to have a boot failure bug that's caused by an update failure bug, creating a circle of, err, bugs

Round and round we go.

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.
Windows Latest

Windows 11 KB5077181 25H2 out with new features, direct download links for offline installers (.msu)

Windows 11 KB5077181 is now rolling out on version 25H2 with a new Cross Device Resume feature, Smart App Control changes, and more.
Windows Latest

I tested Windows 11 February 2026 Updates: Everything new, improved, and fixed

Windows 11 February 2026 update adds Cross-Device Resume, MIDI upgrades, security fixes, and major bug fixes for 24H2 and 25H2.
WinBuzzer

Microsoft Refreshes Secure Boot Certificates via Windows Update

Microsoft has announced it will deliver new Secure Boot certificates via Windows Update starting March 2026 before 2011 ...
TweakTown

Microsoft says recent reports of SSD failures were not caused by a Windows 11 update

TL;DR: Recent reports linked Windows 11 security updates KB5063878 and KB5062660 to SSD failures during large data transfers, especially on DRAM-less drives with Phison controllers. However, after ...