Microsoft Windows 11-26h1-w End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Microsoft Windows 11-26h1-w is actively supported. It reaches end of life on 14 Mar 2028.
526 days of security support left
10.0.28000 latest release
31% of this branch's supported lifetime has elapsed — 10 Feb 2026 → 14 Mar 2028.
Check your versionwinver
Support timeline
Official dates from the Microsoft Windows release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 10 Feb 2026 | 8mo ago |
| Security Support ends | 14 Mar 2028 | in 1y 5mo |
| Latest release | 10.0.28000 | current |
How much runway a newer branch buys
Moving to Microsoft Windows 11-26h2-e extends security support by about 574 days.
| Branch | End of life | Days left | vs 11-26h1-w |
|---|---|---|---|
| Microsoft Windows 11-26h2-e | 9 Oct 2029 | 1,100 | +574 days |
| Microsoft Windows 11-26h2-w | 10 Oct 2028 | 736 | +210 days |
| Microsoft Windows 11-26h1-e | 13 Mar 2029 | 890 | +364 days |
| Microsoft Windows 11-26h1-w | 14 Mar 2028 | 526 | this branch |
| Microsoft Windows 11-25h2-e | 10 Oct 2028 | 736 | +210 days |
| Microsoft Windows 11-25h2-w | 12 Oct 2027 | 372 | -154 days |
| Microsoft Windows 11-24h2-iot-lts | 10 Oct 2034 | 2,927 | +2,401 days |
| Microsoft Windows 11-24h2-e-lts | 9 Oct 2029 | 1,100 | +574 days |
| Microsoft Windows 11-24h2-e | 12 Oct 2027 | 372 | -154 days |
| Microsoft Windows 11-24h2-w | 13 Oct 2026 | 8 | -518 days |
| Microsoft Windows 11-23h2-e | 10 Nov 2026 | 36 | -490 days |
| Microsoft Windows 10-21h2-iot-lts | 13 Jan 2032 | 1,926 | +1,400 days |
| Microsoft Windows 10-21h2-e-lts | 12 Jan 2027 | 99 | -427 days |
| Microsoft Windows 10-1809-e-lts | 9 Jan 2029 | 827 | +301 days |
| Microsoft Windows 10-1607-e-lts | 13 Oct 2026 | 8 | -518 days |
Frequently asked questions
When does Microsoft Windows 11-26h1-w reach end of life?
Microsoft Windows 11-26h1-w reaches end of life on 14 Mar 2028 — 526 days from now. After that date it receives no security fixes.
Is Microsoft Windows 11-26h1-w still supported?
Yes. Microsoft Windows 11-26h1-w is currently maintained. Latest release: 10.0.28000.
What happens when Microsoft Windows 11-26h1-w reaches end of life?
Security fixes stop. After 14 Mar 2028 this branch receives no further updates under standard support.
How long do I have to upgrade from Microsoft Windows 11-26h1-w?
526 days. Moving to Microsoft Windows 11-26h2-e instead buys roughly 574 more days of security support.
All Microsoft Windows versions
11-26h2-e supported 11-26h2-w supported 11-26h1-e supported 11-26h1-w supported 11-25h2-e supported 11-25h2-w supported 11-24h2-iot-lts supported 11-24h2-e-lts supported 11-24h2-e supported 11-24h2-w supported 11-23h2-e supported 11-23h2-w EOL 2025 10-22h2 EOL 2025 11-22h2-e EOL 2025 11-22h2-w EOL 2024 10-21h2-iot-lts supported 10-21h2-e-lts supported 10-21h2-e EOL 2024 10-21h2-w EOL 2023 11-21h2-e EOL 2024 11-21h2-w EOL 2023 10-21h1 EOL 2022 10-20h2-e EOL 2023 10-20h2-w EOL 2022 10-2004 EOL 2021 10-1909-e EOL 2022 10-1909-w EOL 2021 10-1903 EOL 2020 10-1809-e-lts supported 10-1809-e EOL 2021 10-1809-w EOL 2020 10-1803-e EOL 2021 10-1803-w EOL 2019 10-1709-e EOL 2020 10-1709-w EOL 2019 10-1703-e EOL 2019 10-1703-w EOL 2018 10-1607-e-lts supported 10-1607-e EOL 2019 10-1607-w EOL 2018 10-1511 EOL 2017 10-1507-e-lts EOL 2025 10-1507 EOL 2017 10-1507-iot EOL 2020 8.1 EOL 2023 8 EOL 2016 7-sp1 EOL 2020 6-sp2 EOL 2017 5-sp3 EOL 2014