kb5121003

Microsoft’s August 11 Patch Tuesday delivers Windows 11 builds 28000.2704 for version 26H1, 26200.9168 for 25H2, and 26100.9168 for 24H2, while a separate update, KB5120240, takes the still-supported Enterprise and Education editions of 23H2 to build 22631.7517. The immediate action for...

Microsoft’s August 11, 2026 cumulative security update for Windows 11 is KB5121003, bringing Windows 11 25H2 to build 26200.9168 and Windows 11 24H2 to build 26100.9168. The package is available through Windows Update, Windows Update for Business, WSUS, and the Microsoft Update Catalog, but its...