Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is investigating reports that its January 2026 security updates are leaving some ...

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

Microsoft has had to issue two out-of-band updates to fix its buggy Windows 11 patch.

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

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

Microsoft’s January 2026 security update for Windows 11 is continuing to cause problems for users. This comes after the patch ...

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

The January 2026 Patch Tuesday keeps on giving users headaches, as some affected systems now cannot boot with an "UNMOUNTABLE ...

Microsoft is aware of an alleged issue that leaves PCs unable to boot and requires manual recovery after Windows 11 January ...

In a surprising turn of events, Microsoft has confirmed that its January 2026 security update, KB5074109, is causing significant boot issues for some Windows 11 users. This latest development ...

Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 ...

First, right-click on the Start icon and select Run. When the Run dialogue box pops up, type shell:appsfolder and select ...