I've got a new computer and I asked the company that built it to me to use my windows 7 key I own (not pirates copy.. I bought it) and they installed it for me, now sometimes I get a message in the icon bot in the right bottom that windows is trying to activate itself and it fails and then ask me to enter a key and when i enter my key it says the product key you typed cannot be used to activate windows on this computer.. why is that ? my copy of windows 7 is legit and not pirated, i've always used it when i formatted my old computer
http://i62.tinypic.com/200toj9.png
http://i62.tinypic.com/200toj9.png