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

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 explains how Shift + Restart once enabled a fast reboot in early Windows and why modern Windows no longer supports ...

Microsoft’s first major Windows 11 update of 2026 released on January 13 introduced a concerning bug that caused some PCs to ...

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

As reported by Windows Latest, Microsoft has now “released fixes for at least two bugs.” Specifically, the shut-down failure on older PCs running Windows 11 23H2 and a “much more widespread” remote ...

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

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

Because I thought I had discovered something nobody knew ...

Wait, there was a fast restart?