Just days after Windows 7 was released to manufacturing and Microsoft started handing out the gold bits of the operating system to original equipment manufacturers, the original ISO images of Build 7600.16385.090713-1255 were leaked in the wild and are now available for download. The following numbers of the gold release of Windows 7: 090713 indicate that the code was wrapped up on July 13th, 2009. However, there’s no way to actually activate the operating system without an OEM, MSDN, TechNet, ISV, IHV or Volume License key as of yet. Users started using Windows 7 RTM’ll only be able to prolong the trial period for 120 days, and buy a legitimate license starting with October 22nd. Here are the SHA1 and MD5 checksum hashes for 32-bit (x86)Windows 7 RTM: SHA1: BC10F09B86DCBAF35B31B0E6FBA7D006ACAAD28D; MD5: 923C055E481BD02553B65840B928BF54, CRC: 953EFBCC. 64-bit (x64) Windows 7 RTM: SHA1: 029DCCEDD7691206010F84CE58343405A4DA92C9, MD5: F176B1CAAEBF45BDAD95B3D7885CCBDC, CRC: 77BE890E.