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

Windows 11 runs into another disastrous bug with its latest update — Microsoft admits an 'issue in which devices are failing ...

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems ...

Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...

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

Microsoft issues second emergency patch for Windows this month - update your PC today ...

Another week, another big Windows problem.

Are you getting the “Startup repair couldn’t repair your pc” error on your Microsoft Windows computer? There are several factors that can cause this problem ...

A bug in Windows 11 is crashing Explorer.exe, which could make your desktop UI disappear, including the taskbar.