GoKawiilMicrosoft rolls out KB5124008 and KB5122880 for Windows 11 with movable taskbar
Microsoft has shipped the September 2026 Patch Tuesday cumulative updates KB5124008 and KB5122880 for Windows 11 versions 25H2/24H2 and 23H2. The update patches roughly 1,000 vulnerabilities catalogued in recent months and is mandatory, installable via Windows Update or the Microsoft Update Catalog. Since 25H2 shares its codebase with 24H2, both versions receive identical fixes and features.