Task Manager shows 100% CPU utilization, but nothing in process list does
I'm using WinXP, and I notice that in the Task Manager, on the Performance tab my CPU usage is 100%. But When I go to the Processes tab, and sort by CPU System Idle Process is taking up 90%. I've double checked that things like AVG anti-virus isn't actively scanning, and that jkdefrag is not defragging. But I know something is taking CPU cycles, because the machine is very slow. How do I determine which process is hammering the CPU if it doesn't show in the Process List?
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