I immediately noticed a change for the better, as the machine no longer sounds like it's powered by gas, and has actually been quite silent. Encouraged, I updated the Nvidia Drivers, redownloaded Norton security, and installed 101 Windows Updates. So far So good, but I began to notice the computer was having trouble with videos. It would run smoothly for about a second, then stutter and run smoothly again. I chalked it up to the fact that I was installing either updates or Norton at the time. I then redownloaded a few games through Steam, but had the same problem. It would still run smooth, and then stutter, in an identical pattern.
I tried to Defrag it, and have also run a virus scan, both making no difference. Im not quite sure where to even begin with this problem. either.
I have WIndows Vista Home, With Service Pack 2.
Edited by Killigon13, 25 November 2011 - 10:28 AM.