Windows 11 23H2 Shutdown Issue with System Guard Secure Launch
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Windows 11 23H2 devices with System Guard Secure Launch enabled fail to shut down properly after installing the January 13, 2026, cumulative update (KB5073455). Affected systems restart instead of shutting down or entering hibernation. This issue impacts Enterprise and IoT editions of Windows 11, version 23H2. Microsoft has provided a temporary workaround for shutdown but no solution for hibernation. The company is also addressing a separate bug in the January 2026 KB5074109 update causing Remote Desktop connection failures.
Timeline
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16.01.2026 10:35 1 articles · 15h ago
Windows 11 23H2 Shutdown Issue Confirmed
Microsoft has confirmed that Windows 11 23H2 devices with System Guard Secure Launch enabled fail to shut down properly after installing the January 13, 2026, cumulative update (KB5073455). Affected systems restart instead of shutting down or entering hibernation. Microsoft has provided a temporary workaround for shutdown but no solution for hibernation.
Show sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
Information Snippets
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System Guard Secure Launch is a Windows security feature designed to protect the boot process from firmware-level attacks and malware such as rootkits.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
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The issue affects Windows 11 23H2 Enterprise and IoT editions with the KB5073455 cumulative update installed.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
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Affected systems restart instead of shutting down or entering hibernation.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
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Microsoft has provided a temporary workaround for shutdown: running 'shutdown /s /t 0' from the command prompt.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
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There is no workaround for systems configured to enter hibernation.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35
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Microsoft is also addressing a bug in the January 2026 KB5074109 update causing Remote Desktop connection failures and authentication errors.
First reported: 16.01.2026 10:351 source, 1 articleShow sources
- Microsoft: Some Windows PCs fail to shut down after January update — www.bleepingcomputer.com — 16.01.2026 10:35