
To see if that’s the cause of the launching issue, try running the game as an administrator to give it high integrity access. If you’re running Fallout 3 on a standard user account, chances are the game can’t access certain files and folders on your PC. Just work your way down the list until you find the one that works for you.

If you’re having trouble launching Fallout 3, try the solutions below.

There are a few conflicts that may be preventing Fallout 3 from launching correctly.
