Originally Posted by
BigLar
I had a similar problem. Ordinary computer, OS=XP Pro, fresh install.
Noticed it seemed very slow. Checked with Task Manager, and svchost.exe was running 100% cpu - all the time.
It turns out, most of the stuff provided by Microsoft are in the form of .dll's, so they can't execute all by themselves. svchost.exe is a small executable to run the appropriate .dll. You will probably have several instances of svchost running.
Disabling unneeded Windows services can sometimes help, I've found a couple of system where stopping and disabling the "Superfetch" service made quite an improvement.