windows 11 23h2

Microsoft released its January 13, 2026 security rollup for Windows 11 and within days administrators and users began reporting a troubling side effect: on a narrow but consequential set of machines the system would refuse to power off or enter hibernation, instead immediately restarting after a...

Microsoft moved fast this week to contain a disruptive Windows 11 reliability regression: an urgent, out‑of‑band patch labeled KB5077797 was published on January 17, 2026 to repair a shutdown/hibernate regression and related Remote Desktop authentication failures introduced by January’s Patch...

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...

A recent Windows servicing misstep left a small but important slice of Windows 11 PCs refusing to power off: after Microsoft’s January 13, 2026 cumulative update (KB5073455) some systems running Windows 11, version 23H2 with System Guard Secure Launch enabled would restart when users selected...

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...

Microsoft’s January Patch Tuesday produced a narrow but painful regression: after installing the January 13, 2026 cumulative update (KB5073455) some Windows 11 systems configured with System Guard Secure Launch refused to power off or enter hibernation and instead restarted — a problem Microsoft...

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 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 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...

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...

KB5073454 — Safe OS Dynamic Update for Windows 11 (23H2) — January 13, 2026 A WindowsForum-style technical guide, background, deployment checklist and step‑by‑step instructions for end users and administrators Summary KB5073454 (published January 13, 2026) is a Safe OS Dynamic Update that...