Microsoft confirms a Windows bug preventing some PCs from shutting down or hibernating after January 2026 updates. A fix is ...

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

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

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

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.

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

Wait, there was a fast restart?