I'm helping an elderly friend with her computer but she is having some problems that I haven't been able to answer as of yet. Her computer is randomly freezing and it doesn't matter what she's doing, whether she's online or offline, or anything else. I thought maybe it might be caused by too many temp files etc. and other Window's bugs, so I reinstalled her operating system from the beginning again. Even after that it keeps freezing. This makes me think that some peice of hardware is going bad but I don't know how to find which one. Her computer completely locks up and the only way to get out is to hold down on the power button for 5+ seconds. Does anyone have any suggestions? Thank you.