shutdown bug

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...

Some Windows 11 users found a routine shutdown suddenly turned into an unexpected restart after Microsoft’s January 2026 security rollup, but the problem is narrowly scoped and already patched — here’s what happened, who was hit, and exactly how to avoid the bug on your PC. Background / Overview...

Microsoft’s first Windows 11 update of 2026 disrupted shutdown behavior on a narrow but important slice of devices and forced an out‑of‑band emergency fix hours later; the January 13 Patch Tuesday cumulative (notably KB5073455 for Windows 11 23H2) introduced a configuration‑dependent regression...

Microsoft’s January servicing cycle stumbled into a high‑profile reliability problem: the Patch Tuesday cumulative rolled out on January 13 introduced a regression that left some Windows 11 machines unable to shut down or hibernate and broke Remote Desktop sign‑in flows. Microsoft acknowledged...

Microsoft’s January Windows 11 cumulative update left a narrow but disruptive footprint: on some devices running Windows 11, version 23H2 with System Guard Secure Launch enabled, the system may restart instead of powering off or entering hibernation — and Microsoft published an emergency...

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...

A widely deployed January cumulative update for Windows 11 23H2 briefly broke the expected behavior of shutting down and hibernating on a narrowly defined set of machines, causing affected systems to reboot instead of powering off — Microsoft confirmed the regression, published an emergency...

Microsoft's January 2026 cumulative update for Windows 11 (KB5073455) has an unfortunate side effect on a subset of machines: systems with System Guard Secure Launch enabled may refuse to shut down or enter hibernation and will instead restart, a regression Microsoft acknowledged and corrected...

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...

Microsoft’s January Patch Tuesday has generated a sharply focused but consequential regression: the cumulative update for Windows 11, version 23H2 (KB5073455, OS Build 22631.6491), can cause some Secure Launch–enabled systems to restart instead of shutting down or entering hibernation, and...

Microsoft’s January Patch Tuesday has produced a narrowly scoped but disruptive regression: after installing the January 13, 2026 cumulative update for Windows 11 (published as KB5073455), some devices that have System Guard Secure Launch enabled may restart instead of shutting down or entering...

Microsoft’s January 13, 2026 cumulative update for Windows 11 (KB5073455) produced a configuration‑dependent regression that can leave Enterprise and IoT devices with System Guard Secure Launch enabled unable to power off or hibernate — instead the systems sometimes restart immediately after the...

Microsoft’s January security rollup has produced an awkward aftershock: for a narrow but important set of Windows 11 devices, the latest patch is preventing machines from shutting down or entering hibernation and instead forcing an immediate restart. Background The problem is tied to the January...

Microsoft’s January cumulative updates for Windows 11 landed with a mixed bag: important security and reliability fixes, but also a narrowly scoped regression that can leave some systems restarting when users expect them to shut down — and a separate Insider-channel update that quietly adds...

Microsoft has confirmed that the January 13, 2026 cumulative update for Windows 11 — delivered as KB5073455 for version 23H2 — introduced a configuration-dependent regression that can leave some systems unable to power off or enter hibernation: affected machines with System Guard Secure Launch...

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...