I had that same issue, caused by a bad 3rd party HDD tray, though it froze on both OS's if I remember correctly. You should buy your son a cheap ebay 3630qm to

I had that same issue, caused by a bad 3rd party HDD tray, though it froze on both OS's if I remember correctly. You should buy your son a cheap ebay 3630qm to install. Fun little project which really soups up the performance