Windows 7 Home Premium: 32 bit (x86):

http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65732/X15-65732.iso
Sha1: cc9d8220b2179e784d85bf1ea98d2ee2190d534f
64 bit (x64):
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65733/X15-65733.iso
Sha1: 336779EA6B65F63E11A609B4D021439C47AB315B
Windows 7 Home Premium with SP1:
32-bit (x86):
ed2k://|file|en_windows_7_home_premium_with_sp1_x86_dvd_u_676701.iso|2564476928|8B7C3E9EE0E8DE0014C6FFD436E048A9|/
SHA1：6071B4553FCF0EA53D589A846B5AE76743DD68FC
64-bit (x64): ed2k://|file|en_windows_7_home_premium_with_sp1_x64_dvd_u_676549.iso|3320903680|BF37A0833646A236730DA2D0AA6180F5|/
SHA1：6C9058389C1E2E5122B7C933275F963EDF1C07B9

Windows 7 Professional: (Engilish)

Windows 7 Professional:
32 bit (x86):
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65804/X15-65804.iso
SHA1：697FA06554502FB21D30275273B25747299C020D
64 bit (x64):
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65805/X15-65805.iso
SHA1：50127304441A793EE51B3F501289F6599A559E9F
Windows 7 Professional with SP1:
32-bit (x86):
ed2k://|file|en_windows_7_professional_with_sp1_x86_dvd_u_677056.iso|2564476928|6AFD92654E8069BCA6ADD680B141915A|/
SHA1：D89937DF3A9BC2EC1A1486195FD308CD3DADE928
64-bit (x64): ed2k://|file|en_windows_7_professional_with_sp1_x64_dvd_u_676939.iso|3320903680|B9DDE5CD750C844296DE44C688751290|/
SHA1：0BCFC54019EA175B1EE51F6D2B207A3D14DD2B58

Windows 7 Ultimate : (Engilish)

Windows 7 Ultimate:
32 bit (x86):
http://174.129.85.117/data/Windows7Ultimate32bit.iso
SHA1：5395DC4B38F7BDB1E005FF414DEEDFDB16DBF610
64 bit (x64):
http://174.129.85.117/data/Windows7Ultimate64bit.iso
SHA1：326327CC2FF9F05379F5058C41BE6BC5E004BAA7
Windows 7 Ultimate with SP1:
32 bit (x86):
ed2k://|file|en_windows_7_ultimate_with_sp1_x86_dvd_u_677460.iso|2564476928|2593E390556C6CCB8630EDB599D57881|/ SHA1：65FCE0F445D9BF7E78E43F17E441E08C63722657
64 bit (x64): ed2k://|file|en_windows_7_ultimate_with_sp1_x64_dvd_u_677332.iso|3320903680|743598C64E635C72964CF02A3E0AD547|/ SHA1：36AE90DEFBAD9D9539E649B193AE573B77A71C83

Windows 7 Enterprise [English 60 Days Trial]

Windows 7 Enterprise: (Microsoft Official download link)
32-bit (x86): 7600.16385.090713-1255_x86fre_enterprise_en-us_EVAL_Eval_Enterprise-GRMCENEVAL_EN_DVD.iso
64-bit (x64): 7600.16385.090713-1255_x64fre_enterprise_en-us_EVAL_Eval_Enterprise-GRMCENXEVAL_EN_DVD.iso
Windows 7 Enterprise with SP1:
32-bit (x32):
ed2k://|file|en_windows_7_enterprise_with_sp1_x86_dvd_u_677710.iso|2434502656|9B710D7876B754D5F96F72B4A7C9B9A8|/
SHA1：4E0450AC73AB6F9F755EB422990CD9C7A1F3509C
64-bit (x64): ed2k://|file|en_windows_7_enterprise_with_sp1_x64_dvd_u_677651.iso|3182604288|E4D1A2A7BB46706F6545E713EA32A5F3|/ SHA1：A491F985DCCFB5863F31B728DDDBEDB2FF4DF8D1