Weirdest problem

I've searched, spent the past couple of days trying to figure this thing out.
I get a weird stuttering in EVERYTHING I do. Not so bad when I surf, but for example, if I open a new window it takes a little bit longer than when it used to.

Problem started happening about a week ago. At any rate, if I'm playing a game it'll stutter, regardless of if I change the res, details, and what game I play. CS 1.6 is stuck at around 50 fps and dips to 20 regularly. GTR2 is almost not playable, AA I really can't stand as when I shoot I'm already dead.

I've upgraded, downgraded and tried the video drivers I found stable from before. I've done numerous virus scans, can't find anything fishy in task manager. I'm really at a loss, I noticed the CPU spikes to 40-50% usage when I'm doing almost nothing.

Stats are as follows,
T7300
8600M GT
2GB RAM
120GB HDD (90 GB free)

If there's something y'all can do to help that'd be great. If I'm not in the right section, please direct me.

 

1.Have you tried to rollback your system to the points when it was fine?

2.Try to think of the moment when it started to happen and try to remember every little operation that might cause this.

3.If no help, I would drop another harddrive in it (or make a temporary partition on existing one) and install a fresh system in it. Do some benchmarks to check wether it was a software or hardware fault.

 

you have the infamous stuttering issue of the nVidia 8x00 cards. there were a few threads about possible fixes, various fixes worked for various people. you might want to check those out.