After attempting to save my old user account files by copying them over, my CPU usage now never drops below 50%, and sometimes randomly spikes to 100% for a second before jumping back down. This percentage fluctuates little when I run programs, and seems to be the default usage at idle speed, which it was not before the re-install. I don't understand what is causing this. When I go into task manager, it shows the System Idle Process accounts for most of the CPU usage.
Any suggestions?