secure launch

Microsoft has acknowledged that its January 13, 2026 cumulative update for Windows 11, version 23H2 (KB5073455, OS Build 22631.6491) introduced a configuration‑dependent regression: on some systems with System Guard Secure Launch enabled, choosing Shut down or attempting Hibernate can cause the...

Microsoft released an out‑of‑band (OOB) cumulative update for Windows 11, version 23H2 — KB5077797 (OS Build 22631.6494) — on January 17, 2026 to address two high‑impact regressions introduced by the January 13, 2026 cumulative update (KB5073455): Remote Desktop sign‑in failures and a Secure...

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...

The January Patch Tuesday cumulative rollup for Windows 11 has produced a configuration‑dependent regression that, in some environments, prevents affected machines from powering off or entering hibernation — instead they immediately restart. The regression is tied to the January 13, 2026...

Microsoft’s January Patch Tuesday has produced a sharp, configuration‑dependent regression: after installing the January 13, 2026 cumulative updates some Windows 11 PCs configured with System Guard Secure Launch are failing to power off or enter hibernation — instead they restart — and...

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 warned that a January security rollup can leave some Windows 11 machines unable to shut down or enter hibernation — instead the devices restart — and it has published an emergency, manual shutdown workaround while engineers prepare a permanent fix. rosoft released its January 2026...

Microsoft’s January cumulative update has an ugly side effect on a small but consequential slice of Windows 11 PCs: after installing KB5073455, some systems configured with System Guard Secure Launch will restart when users expect them to shut down or enter hibernation — and Microsoft’s interim...

Microsoft has confirmed that a recent January cumulative update for Windows 11 — KB5073455, released on January 13, 2026 — introduced a regression that causes some Windows 11, version 23H2 systems with System Guard Secure Launch enabled to restart instead of shutting down or entering...

Microsoft has confirmed that January’s Patch Tuesday updates for Windows 11 have produced a sharply focused but disruptive regression: after installing the January 13, 2026 cumulative updates some systems running Windows 11 version 23H2 with virtualization‑based Secure Launch enabled may fail to...

Microsoft’s January cumulative rollup for Windows 11 has introduced a pair of verifiable, practical regressions — one that can cause certain 23H2 systems to restart when users expect them to shut down or hibernate, and another that breaks some Azure Virtual Desktop / Cloud PC authentication...

A newly disclosed Windows 11 regression tied to Microsoft’s January 13, 2026 cumulative updates can prevent certain PCs from powering off or entering hibernation — affected machines instead restart — and Microsoft has published a narrow workaround while engineering prepares a permanent fix...

Microsoft has confirmed that January’s Patch Tuesday caused a regression that can leave some Windows 11 systems unable to power off or enter sleep/hibernation — affected machines instead restart — and the bug is tied to Secure Launch / Secure Boot interactions in the January 13, 2026 cumulative...

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...

Microsoft has confirmed that its January 2026 cumulative updates introduced two separate, verified regressions: one that can block Azure Virtual Desktop (AVD) and Cloud PC authentication for some enterprise clients, and a separate issue that prevents certain Windows 11 devices with System Guard...

Microsoft has warned that a January security rollup can leave some Windows 11 machines unable to shut down or hibernate, while other recent updates are producing client-side regressions that break Azure Virtual Desktop and remote‑session authentication—an unsettling start to Patch Tuesday for...