How to take screenshots in Fallout 3
Taking secreenshots in Fallout 3 is done by using “Print Screen” Key in the keyboard.
This option need to be enabled in the game setting,so you need to follow the next steps:
(1) Every time Oblivion loads up it calls a file named “Oblivion.ini”
(2) Open fallout.ini.Search using “Cntrl + F” for the line.
(3) Replace “bAllowScreenShot=0” with “bAllowScreenShot=1”.Save the file and close
Now you can take screenshot by hiting Print Screen Key.Screenshots will be saved in BMP format