WAW will no longer run on my PC for some reason, was playing fine on day, went to play it the next and it won't open? Tried to reinstall and that doesn't work either. Any suggestions? Oh gives me a "call of duty ahs stopped working" error.

 

Its stopped working? well thank god for that informative message then

Im not too sure, have you tried googling for it or looking on COD a forum(theres bound to be one)