I've been having an issue since I've upgraded to windows 10 with Disk 0 being at 100% utilization. I've reviewed task manager and cant figure out whats driving the utilization. In addition I've done all of the most common troubleshooting steps (adjusting virtual memory, shutting off windows search, etc). Does anyone have suggestions to try to determine definitively what is causing this and how to repair it. Any help would be GREATLY appreciated and thanks in advance.