[grim_squeaker_x]

I'd suggest trying to defragment your computer, there are two ways to go about this, I will explain them both:

1. The physical way:
Take your harddrive out of your computer, use a screwdriver to detach all parts, put it together in such a way that it's all crammed together and remove all minor fragments. (Grim Squeaker is not to be held responsible for any problems caused by doing this.)

2. The digital way:
Run the program disk defragmenter, and let it run till finished.

I advise only using the first way if the second one doesn't work.