Microsoft investigates Windows 11 boot failures after January updates

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

Microsoft suspects some PCs might not boot after Windows 11 January 2026 Update (KB5074109)

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

Microsoft links Windows 11 boot failures to failed December 2025 update

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously ...

Windows 11 update may stop some PCs from booting, warns Microsoft

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

Some PCs are failing to boot after this month's Windows update

Another week, another big Windows problem.

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

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

System won't boot: UNMOUNTABLE_BOOT_VOLUME STOP error

I've got an interesting problem... my laptop (running XP SP3) is giving me a BSOD while it's booting. The pertinent information from the BSO <BR><BR>UNMOUNTABLE_BOOT_VOLUME, STOP 0x000000ED ...