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

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 ...

It's not just January's one.

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

Microsoft's latest Windows 11 update KB5077181 is wreaking havoc globally. Users face endless restart cycles, broken logins, and total internet loss. Microsoft advises uninstalling the update ...

Secure Boot has relied on the same security certificates to verify bootloaders since 2011, during the development cycle for Windows 8. But those original certificates are set to expire in June and ...

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

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

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems ...

Microsoft warns Secure Boot certificates will expire June 2026, updating PCs automatically to maintain boot-level security.

Refreshing new certificates represents one of the largest coordinated security maintenance efforts across the Windows ecosystem,' Microsoft explains.

Microsoft's February update KB5077181 tackles the black screen crashes hitting Nvidia RTX users since January. The mandatory ...