Microsoft Windows 11 Emergency Update: Windows 11 to Fix Microsoft Account Sign-In Issues

Source: International Business Times

Microsoft released an emergency out-of-band update for Windows 11 on March 21, 2026, to resolve widespread sign-in problems affecting Microsoft accounts in apps and services following the March 10 Patch Tuesday security release. Microsoft Windows 11 The update, KB5085516 (OS Builds 26200. 8039 for version 25H2 and 26100.