Na MSDN maji SHA1 hashe, minimalne ta 64bit je identicka s tou z torrentu (ten vetsi ISO bez viru ), 32bit sem nekontroloval

File Name: en_windows_7_ultimate_rc_x86_dvd_349010.iso
SHA1: 7D1F486CA569EFFFFB719CFB48355BB7BF499712

File Name: en_windows_7_ultimate_rc_x64_dvd_347803.iso
SHA1: FC867FE1AB2E0A9796F9E4D155B44EA6998F4874

No radsi to preinstaluju nacisto, tech problemu se ukazuje vice.