I installed MW2 some weeks ago (bought via CD). Now my PC has been reset and suddenly my Steam Account was Empty! (Don't know why) But now i can't install MW2 anymore cause the CD Key is used already. Can someone PLEASE PN me a Key or Upload a Keygen for the Game?...
That's nearly impossible.
Either you logged in with wrong account or you're just lying, it's not my to judge..
It can happen, tho, so contact Steam Support and see what they can do.
//Closed to prevent spam.