I have a Dell Dimension that exhibits very high disk usage which makes the computer nearly impossible to use. There's no corresponding process with high CPU or memory usage.
I've done several AV scans which didn't find anything...
It doesn't seem to happen in safe mode. I've used msconfig to prevent nearly everything from starting while booting normally and that didn't have any effect.
Any ideas as to what could be happening here or how to see if there's a hidden process/service that might be causing this?