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

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

Everyone knows you need to keep your operating system up to date, but what happens when a company botches the update and ...

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

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

Windows 11 KB5074109 is causing crashes, reboots, black screens, and BSOD errors for some users, but workaround is available.

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

Windows 11 shutdown bug explained with causes, fixes, and workarounds to stop restarts, battery drain, and failed power-offs ...

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

Windows 11 had a rough 2025. We tracked the top 20 Windows 11 issues reported by Windows Latest, from failed updates to ...

Microsoft has now admitted that the January security updates for Windows 11 23H2 can interfere with sleep mode and shutdown.

The fix is for a bug that prevents some systems from shutting down, while another bug that prevents hibernation has no ...