I took a hard drive from my grandparent's old computer, which still worked fine, and put it in my new one to use there. After installing, the BIOS showed it as ST(bunch of numbers), but wouldn't let me boot from it. When I started up the computer from my current SSD, it didn't show the drive in the This PC section. I read that I should check the diskmgmt.msc to format it, and its visible there, but I'm unable to format it or assign a path, it just says, "The system cannot find the file specified." It's a Seagate Barracuda 7200.10, 320gb. The Virtual Disk Manager says it's Healthy, but in the RAW format instead of NTFS. Also, the hard drive still has a little amount of things on it, but the Disk Manager shows it as completely empty. Any ideas? I can provide more details