Windows Server End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Windows Server versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Extended Support | Days | Status |
|---|---|---|---|---|---|---|
| 2000 LTS | 5.0.2195 | Feb 17, 2000 | Jul 13, 2010 | — | 5857 days past EOL | EOL |
| 2003 LTS | 5.2.3790 | Apr 24, 2003 | Apr 10, 2007 | — | 7047 days past EOL | EOL |
| 2003-sp1 | 5.2.3790 | Mar 30, 2005 | Apr 14, 2009 | — | 6312 days past EOL | EOL |
| 2003-sp2 LTS | 5.2.3790 | Mar 13, 2007 | Jul 14, 2015 | — | 4030 days past EOL | EOL |
| 2008-sp2 LTS | 6.0.6003 | Apr 29, 2009 | Jan 14, 2020 | Jan 10, 2023 Extended Security Updates (ESU) (ended) |
2385 days past EOL | EOL |
| 2008-r2-sp1 LTS | 6.1.7601 | Feb 22, 2011 | Jan 14, 2020 | Jan 10, 2023 Extended Security Updates (ESU) (ended) |
2385 days past EOL | EOL |
| 2012 LTS | 6.2.9200 | Oct 30, 2012 | Oct 10, 2023 | Oct 13, 2026 Extended Security Updates (ESU) |
1020 days past EOL | EOL |
| 2012-r2 LTS | 6.3.9600 | Nov 25, 2013 | Oct 10, 2023 | Oct 13, 2026 Extended Security Updates (ESU) |
1020 days past EOL | EOL |
| 2016 LTS | 10.0.14393 | Oct 15, 2016 | Jan 12, 2027 | Jan 12, 2030 Extended Security Updates (ESU) |
170 days remaining | Warning |
| 1709-sac | 10.0.16299 | Oct 17, 2017 | Apr 9, 2019 | — | 2665 days past EOL | EOL |
| 1803-sac | 10.0.17134 | Apr 30, 2018 | Nov 12, 2019 | — | 2448 days past EOL | EOL |
| 2019 LTS | 10.0.17763 | Nov 13, 2018 | Jan 9, 2029 | — | 898 days remaining | Active |
| 1809-sac | 10.0.17763 | Nov 13, 2018 | Nov 10, 2020 | — | 2084 days past EOL | EOL |
| 1903-sac | 10.0.18362 | May 21, 2019 | Dec 8, 2020 | — | 2056 days past EOL | EOL |
| 1909-sac | 10.0.18363 | Nov 12, 2019 | May 11, 2021 | — | 1902 days past EOL | EOL |
| 2004-sac | 10.0.19041 | May 27, 2020 | Dec 14, 2021 | — | 1685 days past EOL | EOL |
| 20h2-sac | 10.0.19042 | Oct 20, 2020 | Aug 9, 2022 | — | 1447 days past EOL | EOL |
| 2022 LTS | 10.0.20348 | Aug 18, 2021 | Oct 14, 2031 | — | 1906 days remaining | Active |
| 23h2-ac | 10.0.25398 | Oct 24, 2023 | Oct 24, 2025 | — | 275 days past EOL | EOL |
| 2025 LTS | 10.0.26100 | Nov 1, 2024 | Nov 14, 2034 | — | 3033 days remaining | Active |
Live EOL badge for your README — updates automatically at every build.
[](https://endoflife.ai/windows-server)
Microsoft Extended Security Updates (ESU) Timeline
Microsoft's official lifecycle data lists the following Extended Security Update windows. ESU is a paid program that delivers critical security patches only, after a version's mainstream and extended support have already ended — it does not include new features, non-security fixes, or technical support.
| Product | ESU Phase | ESU End Date |
|---|---|---|
| Windows Server 2008 R2 | Extended Security Update Year 4 (Azure only) | Jan 9, 2024 |
| Windows Server 2008 R2 | Extended Security Update Year 3 | Jan 10, 2023 |
| Windows Server 2008 R2 | Extended Security Update Year 2 | Jan 11, 2022 |
| Windows Server 2008 R2 | Extended Security Update Year 1 | Jan 12, 2021 |
| Windows Server 2012 | Extended Security Update Year 3 | Oct 13, 2026 |
| Windows Server 2012 | Extended Security Update Year 2 | Oct 14, 2025 |
| Windows Server 2012 | Extended Security Update Year 1 | Oct 8, 2024 |
| Windows Server 2012 R2 | Extended Security Update Year 3 | Oct 13, 2026 |
| Windows Server 2012 R2 | Extended Security Update Year 2 | Oct 14, 2025 |
| Windows Server 2012 R2 | Extended Security Update Year 1 | Oct 8, 2024 |
Source: Microsoft Lifecycle — official Microsoft data, supplementary to endoflife.date.
What does Windows Server end of life mean for your organization?
When a version of Windows Server reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Windows Server should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Windows Server versions. This is a bridge, not a permanent solution — plan your migration in parallel.
Windows Server has 16 versions past end of life — security patches have stopped, but CVE disclosures haven't. The good news: extended support for Windows Server exists — vetted vendors ship security patches for years past the official date. Tell us where to reach you and we'll reply with matched options and pricing guidance.