defraging game files problem

[huglebunnys]

im having a problem with defraging my oblivion files using contig and the built in defraging software, it says the volume does not have a group of contigous, free clusters that is large enough to contain the entire file. and its slowing the game down dramaticly  down to 1-11 fps outside any help apreciated

[Carbon Dudeoxide]

The game would usually slow down due to what is happening onscreen in the game.
What are you hardware specs and what Disk Defragmenter are you using?