shutdown issue

Microsoft has confirmed that the shutdown-and-hibernation regression triggered by January’s Patch Tuesday affects a broader set of enterprise-grade configurations than originally disclosed: an out-of-band fix addressed many Secure Launch cases, but systems using Virtual Secure Mode (VSM) remain...

Windows 11 users and administrators woke up in mid‑January to a puzzling and disruptive problem: after applying Microsoft’s January cumulative update some PCs refused to power off cleanly. Instead of shutting down or reliably entering hibernation, affected systems often restarted or remained...

Microsoft has confirmed that its January 13, 2026 cumulative update for Windows 11 (KB5073455) introduced a configuration‑dependent regression that can leave some systems restarting when users expect them to shut down or hibernate, and the company’s interim guidance is an explicit command‑line...

Microsoft has confirmed that the January 13, 2026 cumulative update for Windows 11 (KB5073455, OS Build 22631.6491) introduced a configuration‑dependent regression: on systems with System Guard Secure Launch enabled, selecting Shut down or attempting Hibernate can cause the machine to restart or...

A patch released in January 2026 is causing some Windows 11 PCs to restart when users try to shut them down or put them to sleep, and Microsoft has published an emergency workaround while it works on a permanent fix. Background / Overview Microsoft shipped its January cumulative updates on...