Windows Server 2004 SAC end of support
Is Windows Server 2004 SAC still supported?
No Support ended
Support for Windows Server 2004 SAC ended on December 14, 2021.
Key dates Vendor-confirmed
| Release date | May 27, 2020 |
|---|---|
| Support ends | December 14, 2021 |
Notes: Semi-Annual Channel (Modern Lifecycle Policy). Dates from Microsoft's lifecycle page (start date shown as the release date).
Source quality: Every date shown is confirmed in the vendor's own content; anything shown as Unknown is not yet confirmed anywhere.
What the end of support means
- After the final end date the software keeps running, but the vendor no longer ships fixes or security patches. Known vulnerabilities stay open, and compliance or cyber-insurance requirements may treat it as unsupported software.
Upgrade paths
Upgrade to a supported Windows Server version
Staying on the same product usually means the least retraining. Check the upgrade path and system requirements in the vendor documentation; some upgrades must go through an intermediate version.
Buy more time
Some vendors sell extended or paid security support after the standard end date. Check the vendor's lifecycle page for this version.
Related guides
- Extended Security Updates (ESU) explainedWhat Microsoft Extended Security Updates cover and exclude, who can get them, how long they last, and current ESU end dates for Windows Server, SQL Server and Windows 10.
- SQL Server upgrade planning: end-of-support dates and optionsSQL Server support phases, which versions are ending, and Microsoft's documented options: upgrade in place, move to Azure SQL, or buy Extended Security Updates.
Sources
Vendor lifecycle page for the product: https://learn.microsoft.com/lifecycle/products/?terms=Windows%20Server
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