At first it didn't like that GFWL wasn't on my comp so i got a fix for that. Now its asking for a disc. I looked up a way to play it without a disc since it is no longer in working order. I'm certain that like many others i played it without the disc after installing it but it wants one now. And i can't describe how annoyed i am when i see old threads where the same answer is given over and over again despite people saying they already did it. So i am going to say it now, regardless of whether i use fallout3.exe or fallout3launcher.exe it asks for disc. if i get told to run fallout 3.exe and it will work without disc. i will flip my s#*! because you didn't even read the whole post. thank you in advance if anyone can find some kind of fix.