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

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

A Windows security update bug has prevented some Windows 11 24H2 and 25H2 users from booting into their PCs, requiring them ...

Microsoft’s latest Windows 11 security update was meant to harden PCs against stealthy firmware attacks. Instead, it has triggered a fresh headache: some systems now refuse to power off properly, ...

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

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

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 ...

The first big Windows update of 2026 is a glitchy mess - here's the full list of bugs and fixes ...

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

The first Windows 11 update for 2026 has caused unexpected trouble to some users and prevented the affected computers from shutting down or restarting properly.

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