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