Note: If using dual monitors, disable your second one from your Windows display settings. Relaunch the game and check the crash will appear or not. This method can let you play without crashes for hours. Play the game in Windowed mode when you meet crashes.
What to do when Fallout 3 crashes on Windows 10? How to Play Fallout 3 on Windows 10 Without Problems!
How do I get Fallout 3 to work on Windows 10 2020? 4 If it is open on the processes-tab, you can then type a part of the process you want to terminate, I usually type “fall” and then (now a confirmation popup should appear.