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

Microsoft concedes January's out-of-band fix didn't stop some PCs from rebooting instead of sleeping Microsoft rounded off ...

Microsoft released unplanned updates over the weekend. They correct errors in the January patches and bring new boot certificates.

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

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

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

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

Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...

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

Windows 11’s optional KB5074105 update fixes the missing password icon bug linked to August 29, 2025’s KB5064081 and delivers ...

Windows 11 had a rough 2025. We tracked the top 20 Windows 11 issues reported by Windows Latest, from failed updates to ...

Microsoft is reallocating engineers from new feature development to address significant performance and reliability issues plaguing Windows 11. This "swarming" effort, expected to last through 2026, ...