Windows 11 Secure Launch Bug: What You Need to Know
A recently discovered bug in Windows 11 is preventing devices with System Guard Secure Launch enabled from shutting down properly. Instead, affected devices are restarting.
Reason for the Issue: The problem is caused by the KB5073455 cumulative update, which is only offered for Enterprise and IoT editions of Windows 11, version 23H2. System Guard Secure Launch is a Windows security feature designed to protect the boot process from firmware-level attacks and malware.
Solution: Microsoft has provided a temporary workaround for affected users, which involves shutting down the device from the command prompt using the command shutdown /s /t 0. However, there is currently no workaround for systems configured to enter hibernation.
Microsoft is working on a permanent fix for the issue and has advised affected users to save their work and shut down their devices when finished to avoid running out of power instead of hibernating.