If you weren't able to shut down your Windows 11 device recently, Microsoft has rolled out an emergency fix addressing a couple of critical bugs that popped up with its latest January 2026 Windows security update.

Microsoft’s first major Windows 11 update of 2026 quickly turned into a headache for users, after widespread reports emerged of systems failing to shut down properly and remote sign-in tools suddenly becoming unusable.

A Windows 11 security update caused shutdown and remote access failures, forcing Microsoft to release an emergency fix within days.

The patches are available for Windows client versions 10, 11 23H2, 11 24H2, 11 25H2, and Windows Server 2019, 2022, and 2025. Microsoft has not