Can't Shutdown? How to Fix the Windows 11 KB5073455 Shutdown Bug
Learn how to fix the Windows 11 KB5073455 shutdown bug causing PCs to restart. Microsoft has released emergency update KB5077797 to resolve the issue.
Is your PC refusing to stay off? Microsoft's first Patch Tuesday updates of 2026 have introduced a frustrating bug that makes Windows 11 systems reboot instead of shutting down. It's a confusing situation for users who just want to turn off their machines for the day.
Understanding the Windows 11 KB5073455 Shutdown Bug
The issue stems from the January 13, 2026, security update ( KB5073455 ) for Windows 11 version 23H2. According to reports, the glitch specifically targets PCs configured with Secure Launch, a feature designed to protect firmware from malware.
Instead of entering a powered-down state or hibernation, the device simply restarts. Microsoft confirmed the bug in its knowledge base, noting that the conflict arises during the shutdown sequence when Secure Launch is active.
The Quick Fix: Installing Update KB5077797
Fortunately, you don't have to wait for next month's patch. Microsoft has released an out-of-band (OOB) update, KB5077797, to address the Windows 11 KB5073455 shutdown bug. This patch also resolves a secondary bug that caused sign-in failures for Remote Desktop connections.
Users can download the fix directly through Windows Update or the Microsoft Update Catalog. Installing it's highly recommended to restore normal power management functionality to your PC.
This content is AI-generated based on source articles. While we strive for accuracy, errors may occur. We recommend verifying with the original source.
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