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Windows 11 January 2026 Update Causes Shutdown Issues
First seen 18 Jan 2026, 18:57 UTC
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The January 13, 2026, security update for Windows 11 has caused some PCs to refuse to shut down or hibernate, instead restarting. This issue is linked to the update KB5073455, which affects OS Build 22621.6491 on Windows 11 version 23H2 and interferes with Secure Launch. The problem was first reported on January 15, 2026.
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