Windows Server 2012 and Windows 11 21H2 Reach End of Support in October 2023

Windows Server 2012 and Windows 11 21H2 reach end of support on October 10, 2023. Microsoft will no longer provide updates or support.

Microsoft had extended Windows Server 2012 support by 5 years to give customers time to upgrade.

Admins can get Extended Security Updates until 2026 to keep getting security fixes.

Windows 11 21H2 devices will be automatically updated to 22H2 before end of support.

Windows 11 23H2 is now in testing and will release later this year.