I need some suggestions in trouble shooting my Toshiba satellite the problem is windows will not load. Everything was working fine and when I turned on my computer one day it said no operating system and when I tried to load windows it would not load. I checked the bios and the hdd shows up but the bios does not have a test option so I have not tested. I am not sure how to trouble shoot the hdd I would appreciate suggestions. I dont want to purchase a new hdd if I don't need it you know. I also checked the ram and that is ok