When the bug first appeared via the Jan. 13 KB5073455 security update, it was limited to Windows 11 version 23H2 Enterprise ...

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

Last week's security patch is the latest buggy update that impaired some PCs. Take these steps before and after an update to ...

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

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

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

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

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