I'm working on my aunts computer and her external hard drive isn't working. I've tried to trouble shoot it and it says it is not able to start up. I've tried connecting it to my own computer and i get the same error. This is connected through a USB port. I was told by a friend that i should try to run a surface scan on the external drive and see what i get. The only problem is that i don't know how to do that. Can someone give me a heads up as to that or any other suggestions?