Overview
- Microsoft says the issue follows installation of KB5073455 and affects only Windows 11 23H2 Enterprise and IoT devices with System Guard Secure Launch enabled.
- Affected PCs restart instead of shutting down or entering hibernation, and there is currently no method to enable hibernation successfully.
- A temporary workaround allows shutdown by running the command "shutdown /s /t 0" from a Command Prompt.
- Microsoft advises users to save work and perform manual shutdowns to avoid devices running out of power when hibernation fails.
- Separately, KB5074109 is causing Remote Desktop credential prompt failures, and Microsoft recommends using the classic Remote Desktop client or the Windows App web client for Azure Virtual Desktop and Windows 365.