Microsoft only hosts the latest Windows 11 build on its official site. But what if you need an older version like 21H2 or a specific Insider Preview?
Note: Rufus also offers options to bypass Windows 11 system requirements (TPM 2.0, Secure Boot, and RAM minimums) if you are installing on older hardware. Activating Your Archive.org Windows 11 Installation
Microsoft releases major updates twice a year (23H2, 24H2, etc.). If you are a developer or IT admin testing legacy hardware or software, you may need an older specific build number. Microsoft removes older ISOs from its official servers within months. Archive.org keeps them forever. windows 11 iso download archive.org
Microsoft frequently removes older Insider Preview ISOs. Archive.org users often back up these specific evaluation versions.
Tech enthusiasts frequently upload historic Windows Insider Preview builds that are no longer available through official Microsoft flighting channels. Microsoft only hosts the latest Windows 11 build
Look for the SHA-256 hash provided in the Archive.org description, or generate one yourself using Command Prompt ( certutil -hashfile filename.iso SHA256 ).
| | Codename | OS Build | Release Date | Mainstream Support End Date | | :--- | :--- | :--- | :--- | :--- | | 21H2 (Original Release) | Sun Valley | 22000 | October 4, 2021 | October 10, 2023 | | 22H2 (2022 Update) | Sun Valley 2 | 22621 | September 20, 2022 | October 8, 2024 | | 23H2 (2023 Update) | Sun Valley 3 | 22631 | October 31, 2023 | November 11, 2025 | | 24H2 (2024 Update) | Hudson Valley / Germanium | 26100 | October 1, 2024 | October 13, 2026 | | 25H2 (2025 Update) | N/A | 26200 | September 30, 2025 | TBA | Activating Your Archive
Some archived versions feature pre-applied registry tweaks that bypass the strict TPM 2.0, Secure Boot, and RAM requirements of Windows 11.
Would you like more information on downloading or using Windows 11?