From NMA
Insufficient Disk Space Error
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When you get that message it's either:
A. You are really running low on diskspace and should free up some, or
B. Your config files misguide you.
The following solution is for the latter and was proven to work for both FO1 and FO2.
In your Fallout directory find the fallout.cfg file and open it with Notepad. Note: Your file may look slightly different from the one listed below.[indent][system] <-----look under this paragraph
art_cache_size=130
cdlock=C:\Programs\mIRC\download\cdlock.dat
color_cycling=1
critter_dat=C:\Games\BlackIsle\Fallout2eng\critter.dat
critter_patches=C:\Games\BlackIsle\Fallout2eng\data
cycle_speed_factor=1
executable=game
free_space=20480
etc.[/indent]
Change the last value to 0 (zero) instead of 20480.
Alternative solution: In the Windows start menu, choose "Run". Then enter in "services.msc". Find "Error Reporting Service" in the list and right-click to check the Properties. Change the startup type to Disabled.