You have to have either a genuine copy of xp or vista pre installed to perform a succesful clean install , just found this on windows store !! Look under System Requirements, make sense ?
Link http://emea.microsoftstore.com/UK/Microsoft/Windows-7-Professional-E
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Hi I got this version, clearly retail, no OEM... does it mean I can install it on my laptop as well? I have activated on my pc, and later I installed on my laptop too, but cannot accept the product key. So what now, anybody?