Select the Compatibility tab and tick the Run this program as an administrator box.Right click the Fallout 3 application file and select Properties.
Issues associated with launching and playing the game can often be resolved by changing the following display options: If you continue to experience issues, you can also try the following troubleshooting steps: Note: Fallout 3 is not optimized for Windows 7 and later operating systems. Fallout 3 performance issues on Windows 7 or 8, you should first ensure that you meet the game's minimum requirements and you have the latest NVIDIA or AMD graphics card drivers installed.
