Upon startup the disk drive runs at full speed and continues to do so even after start up programs have initiated. The disk fluctuates after about 20 mins from start up going from 0-100 then repeats. I have tried to disable the start up service superfetch which checks files and can some times cause this issue. I found that disabling my virus software briefly helped the issue, but only for a few minutes. I have also run several virus scans as well as scans to check my hardware but have come up empty. After working on the computer for a while it will lock up or freeze. The mouse is able to move around but no commands initiate a response. I don't know if this is a hardware issue or a software issue...
My Workstation:
Dell precision tower 5810
Intel Xeon E5-1620 3.5 GHz
16Gb RAM
Nvidia Quadro K4200
Windows 8.1 Pro