power state regression

About this tag
The tag 'power state regression' covers a specific Windows 11 bug introduced by the January 2026 Patch Tuesday update (KB5073455) that prevented affected systems from shutting down or hibernating, causing them to restart instead. The issue was tied to devices configured with System Guard Secure Launch. Microsoft documented the behavior, issued an emergency workaround, and later released an out-of-band remedial update on January 17, 2026 to fix the regression. This tag is relevant for users and IT administrators troubleshooting shutdown or hibernation failures after applying the January 2026 cumulative update.
  1. Windows 11 Shutdown Bug with Secure Launch KB5073455 and OOB KB5077797

    Microsoft’s January Patch Tuesday brought a familiar trade‑off: a broad security rollup that closed dozens of vulnerabilities — and, for a narrowly defined set of systems, an unexpected regression that prevents shutdown and hibernation from completing as intended. The bug, tied to the Windows 11...
  2. Windows 11 January 2026 Patch: OOB Fixes for Remote Desktop and Secure Launch Shutdown

    Microsoft’s January update cycle took an unexpected detour this week when a Patch Tuesday release introduced a narrowly scoped but disruptive regression that left some Windows 11 systems unable to shut down or enter hibernation, forcing Microsoft to ship emergency out‑of‑band (OOB) updates on...