Inside the general group, after all the configuration parameters, just copy and paste the following 2 lines:.
Inside FALLOUT.ini look for a group called.
Open the folder My documents / My Games / Fallout3.
The fix for this Fallout 3 bug is very easy: just copy and paste and you are ready to go: It seems that this crash is caused by a bug in Fallout which doesn't adapt multi-threading well, and this PC game stops responding in small areas. If you have a multi-core CPU, like the Quad, and you experience a Fallout 3 crash when loading interiors (the PC version of Fallout 3, specially in closed spaces).