It's not just January's one.

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

The post Windows 11 boot issues tied to bad December update appeared first on Android Headlines.

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

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

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

Another week, another big Windows problem.

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems ...

Round and round we go.

In confirmed cases, Windows 11 boot failure occurs post-update, with the machine stuck at a black screen and unable to ...

Remember that Windows bug preventing PCs from shutting down or hibernating? It affects more devices than we initially thought ...