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Microsoft Security Update Triggers Widespread Windows Shutdown Failures

2/4/2026

26 2 Full Breakdown

Summary

Story summary

Microsoft's January 2026 security update caused shutdown issues across Windows 10 and Windows 11, with devices restarting instead of shutting down.
The problem stems from a disconnect between the security updates and System Guard Secure Launch.
Emergency patches were released on January 17 and January 24, 2026, but many systems, especially with Virtual Secure Mode, remain affected.

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Story summary

Microsoft's January 2026 security update caused shutdown issues across Windows 10 and Windows 11, with devices restarting instead of shutting down.
The problem stems from a disconnect between the security updates and System Guard Secure Launch.
Emergency patches were released on January 17 and January 24, 2026, but many systems, especially with Virtual Secure Mode, remain affected.