out-of-band update

Microsoft has confirmed that its January 13, 2026 security rollup for Windows — published as KB5073455 for Windows 11 version 23H2 — introduced a configuration-dependent regression that can leave some systems unable to shut down or enter hibernation. Affected machines with System Guard Secure...

Microsoft has expanded its acknowledgment of a Windows 11 shutdown regression first reported in mid‑January, confirming that the January 13, 2026 cumulative update (KB5073455) can cause some PCs configured with System Guard Secure Launch (Virtual Secure Mode / VSM) to restart instead of powering...

Microsoft's January update cycle has left a stubborn aftertaste for administrators and security‑minded users: even after an out‑of‑band (OOB) fix, machines running Windows 11 with System Guard Secure Launch — and, in some cases, Virtual Secure Mode (VSM) enabled — can still fail to honor...

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 pushed an emergency, cumulative out-of-band update for Windows 11 version 23H2—KB5078132 (OS Build 22631.6495)—on January 24, 2026 to repair file‑access regressions and Outlook reliability problems introduced by the January 13, 2026 security rollup; the patch bundles prior January...

Microsoft’s January servicing cycle for Windows 11 rolled from a routine security update into a multi-stage remediation sprint after the January 13 Patch Tuesday release triggered a string of regressions that left everyday apps — from Notepad to classic Outlook — failing or becoming unresponsive...

Microsoft shipped emergency out‑of‑band updates this month to correct two disruptive regressions introduced by January’s cumulative rollup: a configuration‑specific shutdown/hibernate failure tied to System Guard Secure Launch, and separate Remote Desktop authentication failures. Microsoft’s...

Microsoft confirmed that its January 13, 2026 cumulative update for Windows 11 — shipped as KB5073455 for version 23H2 — caused a regression on some systems with System Guard Secure Launch enabled that made the shutdown button unreliable and rendered sleep/hibernation unusable, and the vendor...

A routine Windows security update should not leave machines refusing to power off. Yet in mid‑January a cumulative package for Windows 11 created a nasty, configuration‑dependent bug: on some systems the Shutdown and Hibernate commands were ignored and the PC simply restarted. That regression...

Microsoft has issued an out‑of‑band fix after a January update left a small subset of Windows 11 systems unable to shut down or enter hibernation — affected machines would restart instead of powering off — and the remedial package, KB5077797, is now available from Microsoft (and the Microsoft...

Microsoft has issued emergency, out‑of‑band (OOB) Windows updates to correct two disruptive regressions introduced by the January 2026 Patch Tuesday rollout: a Remote Desktop sign‑in failure that broke credential prompts for some modern remote clients, and a shutdown/hibernate regression that...

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 pushed an emergency, out‑of‑band update after its January Patch Tuesday rollup caused a surprising power‑state regression on a narrow subset of Windows 11 devices: some systems running Windows 11, version 23H2 with System Guard Secure Launch enabled were restarting instead of shutting...

Microsoft’s January Patch Tuesday hiccup that left some Windows 11 PCs refusing to power off has laid bare a deeper tension: the company’s aggressive pivot to AI-first features is colliding with the chores of patching, firmware hardening, and the bedrock expectation that a computer will actually...

Microsoft’s January cumulative update briefly turned into an openrational emergency for a narrow—but impactful—slice of Windows 11 users when some machines refused to remain powered off, prompting Microsoft to publish an interim workaround and ship an out‑of‑band remedial update days later. The...

Microsoft moved quickly this week to ccontain a surprising reliability regression in Windows 11 after January’s Patch Tuesday cumulative updates left a subset of systems unable to shut down or hibernate and caused widespread Remote Desktop sign‑in failures — an emergency out‑of‑band (OOB)...

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’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...

A recent January servicing misstep left a narrow but important slice of Windows 11 systems restarting when users asked them to shut down or hibernate — a regression Microsoft has acknowledged and patched with an out‑of‑band update for Windows 11 version 23H2. Background / Overview The issue...

Microsoft moved quickly after January Patch Tuesday to roll out emergency fixes for two disruptive regressions that began appearing on January 13, 2026 — an out‑of‑band repair that restores proper shutdown/hibernate behavior on systems with System Guard Secure Launch enabled and a companion...