[SOLVED]key code help

i buyght cod mw2 and downloaded it now i got a new pc and whant to download agein but i cant becausse i use the key code alraedy how i can play nob some 1 help me plz

I don't really know if there is a solution, but u can always contact Steam support, but I don't really know if it will solve your solution.

/moved to help

Can't be done.

/marked as solved