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

Windows 11 runs into another disastrous bug with its latest update — Microsoft admits an 'issue in which devices are failing ...

After the first update stopped PCs from shutting down or going to sleep, the latest one halts the boot-up process. Microsoft ...

Windows 11 Enterprise and IoT get an update disrupting shutdown and hibernation functionality, but a more manual shutdown is ...

Microsoft has posted an online bulletin confirming that the company is investigating reports that state Windows 11's latest ...

Windows update KB5074109 is linked to black screen and freezing issues on Nvidia systems, with users awaiting a driver or ...

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

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

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

The first big Windows update of 2026 is a glitchy mess - here's the full list of bugs and fixes ...

After Windows 11 January 2026 update, we're seeing reports of other issues, including a sleep problem (S3), and more.

Microsoft has now admitted that the January security updates for Windows 11 23H2 can interfere with sleep mode and shutdown.