I was told that I could connect my failed PC hard drive to a Mac to retrieve the data. I believe that it has a virus, it gives the black screen of death. The hard drive is removed, and a new one is installed. The machine works great, but when I put the old drive into the second slot and connect the wires, the computer doesn't recognize that it's there. So, I'm hoping someone here can educate me on the finer details of retrieving the data via a Mac.