Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.
Round and round we go.
XDA Developers on MSN
Microsoft confirms that a stack of bad Windows updates is causing boot issues
It's not just January's one.
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 ...
A fresh wave of Windows 11 update trouble is making the rounds, and this one is about as disruptive as it gets: some PCs reportedly can’t boot after installing the latest January 2026 security update.
Neowin also notes another dark side to this latest issue. “Interestingly, Microsoft came up with a technical solution for ...
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 of serious boot failures affecting Windows 11 devices following the January 2026 security updates. Users have reported encountering “UNMOUNTABLE_BOOT_VOLUME” errors, ...
Everyone knows you need to keep your operating system up to date, but what happens when a company botches the update and ...
Microsoft issues second emergency patch for Windows this month - update your PC today ...
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