Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.
Neowin also notes another dark side to this latest issue. “Interestingly, Microsoft came up with a technical solution for ...
In confirmed cases, Windows 11 boot failure occurs post-update, with the machine stuck at a black screen and unable to proceed to the login or desktop.
The Register on MSN
Microsoft probes Windows 11 boot failures tied to January security updates
Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...
13don MSN
Why you need Microsoft's new emergency Windows patch - and the black-screen bug to watch for
Why you need Microsoft's new emergency Windows patch - and the black-screen bug to watch for ...
Another week, another big Windows problem.
Microsoft is investigating reports of serious boot failures affecting Windows 11 devices following the January 2026 security updates. Users have reported encountering “UNMOUNTABLE_BOOT_VOLUME” errors, ...
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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