Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...

Microsoft is aware of an alleged issue that leaves PCs unable to boot and requires manual recovery after Windows 11 January ...

Microsoft is investigating reports of serious boot failures affecting Windows 11 devices following the January 2026 security ...

Windows 11 KB5074109 is wreaking havoc thanks to several issues, with the most serious keeping users out of the operating ...

Error Code 0xc00000f0 generally occurs while upgrading Windows Installation, especially from Windows 10 to Windows 11. Users confirm that while upgrading the Windows ...

Microsoft has released an out-of-band update to address a known issue causing some Windows 11 systems to enter recovery and fail to start after installing the KB5058405 May 2025 security update. Users ...

Struggling with GPT disk errors during Windows 11 installation? Discover proven, step-by-step fixes to resolve this common ...

Most users jump straight to a clean install when Windows starts boot looping. Here is why you should try these rollbacks and recovery tools first.

Struggling with the Unexpected Kernel Mode Trap error on Windows 11? This comprehensive guide walks you through proven ...