My CPU typically idles at around 10%, but today, at least according to Speedfan and Performance Monitor, my CPU has been running at 100%. The catch is that when I open the Process Manager CPU drops down to 10%, but almost immediately after I close it the CPU jumps back up to 100%. I haven't been able to identify the issue and now I have to have the Task Manager at all times to prevent BSODs. I ran quick scans with MSE and Malwarebytes and they both turned up nothing, but I'm in the process of running full scans. It doesn't happen in Safe Mode so it may be a driver issue. I hadn't noticed the issue until today, but last night after waking up from a nap my PC said it had recovered from an unexpected shut down. Has anybody run across this before and know of a fix other than a fresh install? If not is there a way I can see what is using up 100% of my CPU? I've used Process Explorer, Task Manager, and Resource Monitor but they all drop the CPU usage down to a normal amount. I'm running Windows 7 64 with a i5 2500k.
Edit: No findings in the full scans
Edit: No findings in the full scans