Originally posted by Pixie
Nope as the key was already in if you get it from steam
u know you could of wrote it down :/ well idk how cod 4 steam works...I bought mine from the store
uhhh if you know anything about registry files in your pc u MAYBE can recover it if you know how to do it. I read that you can recover a lost cd key by using the registry. But I forgot how to do it and if you do it wrong you can screw your pc up.
Try searching google? or send a thing into steam saying you lost it.