Windows 11 Version 21h2 Build 22000.978 | 22h2 ... -

All editions of Version 21H2 reached the end of servicing by October 8, 2024, meaning they no longer receive security or quality updates. Transition to Windows 11 Version 22H2 (Build 22621)

Included various security improvements and quality fixes for the Servicing Stack , ensuring a reliable update process. Windows 11 Version 21H2 Build 22000.978 | 22H2 ...

Released as part of "Patch Tuesday," Build 22000.978 (KB5017328) focused on stabilizing the operating system and addressing security vulnerabilities. All editions of Version 21H2 reached the end