I recently was given a friends used full sized tower. It is a whole set up but the issue is, he does not know his windows 10 password. We tried to reinstall windows 10 to clean install through the log in options but it just stops the reinstall process at random times and then boots normally till the log in screen. So with that not working, I am planning to wipe both the SSD and Hard Drive but they are both internal drives. I never had to wipe internal drives before so I am wondering what is the best way to do this? I bought a SATA to USB cable thinking I could access the Hard Drive but it never showed up in my own PC. So do I need to hook up this used Drive to my own PC like my current internal ones? Any information or any way to do this would be great.