Microsoft Windows 10-21h2-e-lts End of Life
Support dates and upgrade guidance — rebuilt from live data.
Microsoft Windows 10-21h2-e-lts is actively supported. It reaches end of life on 12 Jan 2027.
Support timeline
Official dates from the Microsoft Windows release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 16 Nov 2021 | 4y 11mo ago |
| Security Support ends | 12 Jan 2027 | in 3mo |
| Extended Security Updates ends | 12 Jan 2030 | in 3y 3mo |
| Latest release | 10.0.19044 | current |
How much runway a newer branch buys
Moving to Microsoft Windows 11-26h2-e extends security support by about 1,001 days.
| Branch | End of life | Days left | vs 10-21h2-e-lts |
|---|---|---|---|
| Microsoft Windows 11-26h2-e | 9 Oct 2029 | 1,100 | +1,001 days |
| Microsoft Windows 11-26h2-w | 10 Oct 2028 | 736 | +637 days |
| Microsoft Windows 11-26h1-e | 13 Mar 2029 | 890 | +791 days |
| Microsoft Windows 11-26h1-w | 14 Mar 2028 | 526 | +427 days |
| Microsoft Windows 11-25h2-e | 10 Oct 2028 | 736 | +637 days |
| Microsoft Windows 11-25h2-w | 12 Oct 2027 | 372 | +273 days |
| Microsoft Windows 11-24h2-iot-lts | 10 Oct 2034 | 2,927 | +2,828 days |
| Microsoft Windows 11-24h2-e-lts | 9 Oct 2029 | 1,100 | +1,001 days |
| Microsoft Windows 11-24h2-e | 12 Oct 2027 | 372 | +273 days |
| Microsoft Windows 11-24h2-w | 13 Oct 2026 | 8 | -91 days |
| Microsoft Windows 11-23h2-e | 10 Nov 2026 | 36 | -63 days |
| Microsoft Windows 10-21h2-iot-lts | 13 Jan 2032 | 1,926 | +1,827 days |
| Microsoft Windows 10-21h2-e-lts | 12 Jan 2027 | 99 | this branch |
| Microsoft Windows 10-1809-e-lts | 9 Jan 2029 | 827 | +728 days |
| Microsoft Windows 10-1607-e-lts | 13 Oct 2026 | 8 | -91 days |
Frequently asked questions
When does Microsoft Windows 10-21h2-e-lts reach end of life?
Microsoft Windows 10-21h2-e-lts reaches end of life on 12 Jan 2027 — 99 days from now. After that date it receives no security fixes.
Is Microsoft Windows 10-21h2-e-lts still supported?
Yes. Microsoft Windows 10-21h2-e-lts is currently maintained. Latest release: 10.0.19044.
What happens when Microsoft Windows 10-21h2-e-lts reaches end of life?
Security fixes stop. After 12 Jan 2027 this branch receives no further updates under standard support, though extended support runs to 12 Jan 2030.
How long do I have to upgrade from Microsoft Windows 10-21h2-e-lts?
99 days. Moving to Microsoft Windows 11-26h2-e instead buys roughly 1,001 more days of security support.