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If you are a collector, an enterprise user needing a legacy build for testing, or simply want to go back to the very first release of Windows 10, you are looking for the version. This is officially known as Windows 10 version 1507 (build number 10240).

Last Updated: [Current Date]

| Edition | Architecture | Language | SHA-1 Hash | | :--- | :--- | :--- | :--- | | Windows 10 Home/Pro | 64-bit | English (US) | C71FCB0F4FB1AAD5A77310BCF6F6F52C7E48C83C | | Windows 10 Home/Pro | 32-bit | English (US) | 4168227687B5BEC86CFB4B84BF0F0B12D6E5D896 | | Windows 10 Enterprise | 64-bit | English (US) | E72A2A67D8C66EFC6D3559552A1EFAD6AB8135C3 | | Windows 10 Enterprise | 32-bit | English (US) | BFE545EDEE9E3EF9F71BEBAB5ECF2C07F41E6066 |