I had exactly the same problem. I changed my anti virus from Norton to AVG. I
did a scan and it found 3 Trojan horses. My computer is fine now.

"Sam" wrote:

> after running for a while svchost.exe starts using more memory and cpu usage
> goes up to 100%. i read about this problem in article 324139, it says it only
> applies to windows 2000 though. Im running windows xp home SP2 and im not
> sure how to fix the problem.