Microsoft Windows 11-21h2-e End of Life
Support dates and upgrade guidance — rebuilt from live data.
Microsoft Windows 11-21h2-e reached end of life on 8 Oct 2024. It no longer receives security fixes.
Support timeline
Official dates from the Microsoft Windows release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 4 Oct 2021 | — |
| End of life | 8 Oct 2024 | 1.8 years ago |
| Latest release | 10.0.22000 | final |
Where to go from 11-21h2-e
Recommended target: Microsoft Windows 11-26h1-e (supported until 13 Mar 2029).
The newest actively supported branch is Microsoft Windows 11-26h1-e (latest release 10.0.28000).
Frequently asked questions
Is Microsoft Windows 11-21h2-e still safe to use?
Microsoft Windows 11-21h2-e reached end of life on 8 Oct 2024, 670 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Microsoft Windows 11-21h2-e?
Yes — the final release (10.0.22000) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Microsoft Windows 11-21h2-e to?
Upgrade to Microsoft Windows 11-26h1-e, the newest actively supported branch (supported until 13 Mar 2029).