End of life
Microsoft Server Windows Server 2004 SAC
All published support, including security fixes, has ended. The published end-of-support date was 2021-12-14 — 1690 days ago.
Scope: software releaseAs of 2026-08-01
Lifecycle timeline
- 2020-05-27 — Release date · General availability
- 2021-12-14 — End of active support · End of maintenance
- 2021-12-14 — End of support · End of standard support
Why this status?
“End of active support” (end-of-maintenance, 2021-12-14, confirmed) has passed and no later support phase is published.
Windows Server releases still inside the support window
- Windows Server 2025 (LTSC) — support ends 2034-11-14
- Windows Server 2022 (LTSC) — support ends 2031-10-14
- Windows Server 2019 (LTSC) — support ends 2029-01-09
- Windows Server 2016 (LTSC) — support ends 2027-01-12
Reported as still supported by the cited source. MS Server documents the upgrade path for your edition and contract — confirm there before planning change work.
Evidence
- Microsoft Windows Server lifecycle Official · checked 2026-08-01
- endoflife.date product data independent-open · checked 2026-08-01
Keep going
- All MS Server Windows Server lifecycle dates· 20 tracked releases
- MS Server Windows Server security advisories· 418 tracked
- Free CVE email alerts for MS Server
Status derived deterministically from the published milestones. When a vendor does not publish a date, this page says so — it never guesses.