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

Microsoft has posted an online bulletin confirming that the company is investigating reports that state Windows 11's latest security update has rendered some PCs unbootable.

Round and round we go.

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

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

The most recent January Windows Update is broken on a number of PCs, but at least virtual machines don't seem to be impacted.

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

Microsoft issues second emergency patch for Windows this month - update your PC today ...

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 ...

Struggling with Windows 11 Update Error 0x80070422? Discover proven fixes to resolve this frustrating issue quickly.

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

Another week, another big Windows problem.