I force closed my iMac for a specific reason (Thunderstorm) and when I restarted it my iMac started to scan and repair its drivers. I waited for 4 hours and everything was fine, until I realized that every app was slow (too many not responding errors).
I restarted my iMac then it again scanned and repaired its drivers for an hour. When I went to the task manager I realized that the disk usage was 100 percent and I couldn't change it.
How can I fix this problem? Will switching back to Mac OS X or formatting the Windows partition fix it?