Microsoft Windows Server Core 2025 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Microsoft Windows Server Core 2025 is actively supported. It reaches end of life on 10 Oct 2034.
Support timeline
Official dates from the Microsoft Windows Server Core release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 1 Nov 2024 | 1y 11mo ago |
| Active Support ended | 9 Oct 2029 | security fixes only after this |
| Security Support ends | 10 Oct 2034 | in 8y |
| Latest release | 10.0.26100 | current |
How much runway a newer branch buys
Microsoft Windows Server Core 2025 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 2025 |
|---|---|---|---|
| Microsoft Windows Server Core 2025 | 10 Oct 2034 | 2,927 | this branch |
| Microsoft Windows Server Core 2022 | 14 Oct 2031 | 1,835 | -1,092 days |
| Microsoft Windows Server Core 2019 | 9 Jan 2029 | 827 | -2,100 days |
| Microsoft Windows Server Core 2016 | 12 Jan 2027 | 99 | -2,828 days |
Frequently asked questions
When does Microsoft Windows Server Core 2025 reach end of life?
Microsoft Windows Server Core 2025 reaches end of life on 10 Oct 2034 — 2,927 days from now. After that date it receives no security fixes.
Is Microsoft Windows Server Core 2025 still supported?
Yes. Microsoft Windows Server Core 2025 is currently maintained. Latest release: 10.0.26100.
What happens when Microsoft Windows Server Core 2025 reaches end of life?
Security fixes stop. After 10 Oct 2034 this branch receives no further updates under standard support.
How long do I have to upgrade from Microsoft Windows Server Core 2025?
2,927 days. This is already the newest branch, so this is the longest runway currently available.