Default location: C:\Program Files (x86)\Steam\steamapps\common\Fallout 3 goty.Go to your Fallout 3 install folder within Steam and locate the executable.Note: If you are NOT an administrator on your computer, you will not have the Compatibility tab. Run the Fallout 3 Executable as an Administrator Ensure that the resolution of the game matches that of your display monitors by selecting Options from the Fallout 3 Launcher and selecting the correct resolution under Graphics Adapter and Resolution.If using dual monitors, disable your second one from your Windows display settings.Launch the game in Windowed Mode by selecting Options from the Fallout 3 Launcher and ticking the Windowed box under Mode.Issues associated with launching and playing the game can often be resolved by changing the following display options: To resolve Fallout 3 performance issues on Windows 10, you should first ensure that you meet the game's minimum requirements and you have the latest NVIDIA or AMD graphics card drivers installed.
