Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.
Microsoft’s new warning was spotted by Windows Latest. “In an updated support document, the company has confirmed that the update is indeed crashing some PCs.” This primarily affects commercial PCs.
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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