patch tuesday

Microsoft’s January 2026 security rollup includes a confirmed elevation‑of‑privilege issue affecting Windows Management Services tracked as CVE‑2026‑20923; the vendor record in the Microsoft Security Update Guide marks the flaw as an Elevation of Privilege and places it in the January 13, 2026...

Microsoft has begun rolling out the January 2026 Patch Tuesday for Windows 11 — KB5074109 — advancing 25H2 systems to Build 26200.7623 (and 24H2 to Build 26100.7623) with a package that is primarily a quality-and-stability cumulative but also carries staged feature activations for Copilot-era...

Microsoft has quietly rolled out targeted fixes that repair several high‑impact UI and servicing regressions in Windows 11 versions 25H2 and 24H2, addressing everything from the long‑running “Update and shut down” misbehavior to a jarring dark‑mode regression in File Explorer and an emergency...