After the first update stopped PCs from shutting down or going to sleep, the latest one halts the boot-up process. Microsoft says it's investigating the problem.
Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.
Another week, another big Windows problem.
Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...
Microsoft has a new feature called Quick Machine Recovery to help you recover your system from boot failure. The feature is available for all Windows 11 versions, including Windows 11 Home. The Quick ...
Troubleshooting a problem computer requires patience, know-how, and a lot of trial and error. Booting your PC in a clean configuration can help automate the process ...