Windows 11 February 2026 update adds Cross-Device Resume, MIDI upgrades, security fixes, and major bug fixes for 24H2 and 25H2.

Windows 11 servicing stack update (KB5043937) - 22621.4166 and 22631.4166 This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing ...

Microsoft has pulled one more buggy Windows 10 servicing stack update (SSU), KB4601390, because it blocked customers from installing this month's security and Cumulative Updates. The company resolved ...

Microsoft released a new servicing stack update (KB5001078) after an older one caused problems for Windows users installing Patch Tuesday security updates. Microsoft has removed a faulty servicing ...