A quick video showing a possible fix for crashing in Fallout 3 when entering small interiors. The bug seems to be in how the game handle multi core CPUs.
Fallout 3 on sale at GOG : https://tinyurl.com/GopherGOGFallout3
The simple fix is to edit your Fallout.ini and find a line 'bUseThreadedAI=0' and change it to 'bUseThreadedAI=1' and then below this add a line 'iNumHWThreads=2'
The music playing is called "I don't want to set the world on fire" by the Ink Spots and is the main theme music for Fallout 3.
This video is in no way associated or approved by Bethesda and is intended for non commercial educational purposes only.
Gopher currently has 10,731,999 views spread across 261 videos for Fallout 3. His channel uploaded over 6 days worth of Fallout 3 videos, roughly 4.94% of the content that Gopher has uploaded to YouTube.