patch tuesday

Microsoft has issued an urgent warning after January’s cumulative updates caused a narrow but disruptive regression that can leave some Windows 11 systems restarting when users expect a shutdown or failing to enter hibernation — a problem Microsoft patched with out‑of‑band fixes days later, but...

Microsoft's January Patch Tuesday security rollup triggered a cascade of unexpected failures that prompted an unusually rapid series of emergency fixes from Microsoft between January 13 and January 17, 2026, leaving millions of users and IT teams scrambling to restore remote access, shutdown...

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 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 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 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...

Microsoft has started rolling out the January 2026 cumulative update for Windows 11—KB5074109—which advances affected machines to OS Build 26200.7623 (25H2) or 26100.7623 (24H2) and bundles this month's security fixes, quality improvements, and a phased distribution of updated Secure Boot...

Microsoft’s first Patch Tuesday of 2026 shipped on January 13 with a substantial Windows 11 cumulative—KB5074109—that advances consumer installs to OS Build 26200.7623 (25H2) and 26100.7623 (24H2), bundles servicing‑stack changes with the Latest Cumulative Update (LCU), and mixes security...

Microsoft has quietly adjusted the Windows 11 Media Creation Tool so the media it builds now pulls a more up‑to‑date Windows 11 image—aligning installer payloads with recent Patch Tuesday updates—and has simultaneously closed a compatibility regression that briefly broke the tool on some hosts...

Microsoft has quietly adjusted two parts of the Windows maintenance story that many users take for granted: the official Windows 11 Media Creation Tool now pulls fresher, Patch‑Tuesday‑level images (reducing the need for large post‑install updates), and Windows 11 includes a powerful, built‑in...

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...

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 shipped the January 2026 Patch Tuesday updates on January 13–14, and the result is a month dominated by fixes and risk‑mitigation rather than new consumer features: Windows 11 received the cumulative update KB5074109 (builds 26200.7623 and 26100.7623) that addresses battery, stability...

If you use Windows, Microsoft Office, Azure services, SQL Server, or Microsoft developer tools, treat the latest advisories as urgent: India’s national cyber‑security agency CERT‑In has flagged multiple high‑severity Microsoft vulnerabilities and Microsoft has issued January 2026 security...

Windows and Microsoft product users are facing renewed urgency after a flurry of security advisories and the January 13, 2026 Patch Tuesday that fixed more than a hundred vulnerabilities — including at least one flaw Microsoft says was actively exploited in the wild — and security agencies and...

Microsoft’s January Patch Tuesday for Windows 11 landed with more than the usual batch of security fixes: the cumulative update (KB5074109) published on January 13, 2026, bundles a servicing‑stack update and a set of quality changes that include compatibility shifts, a targeted fix for battery...

Microsoft released the January 13, 2026 security baseline today — published as KB5074109 — and enterprise administrators should treat this as both a mandatory security checkpoint and a practical reminder about the new Hotpatch servicing cadence for Windows 11 Enterprise (24H2 and 25H2). The...