I have an old PC with XP which isn't working. This is because of power problems and the PC now boots continuously. I got Linux Mint on a USB drive and have got all the data I need off the HDD, but Mint won't show the disk when I try to install them and using cfdisk gives a fatal error. I assume that the corruption it suffered has corrupted something in the MBR(?) of the disk so it can't be used as boot device, but I assume the disk is recoverable as I can see the files OK in Linux (it's how I got my files off it).
So what's the best way to deal with this please? I'm happy the whole disk can be wiped and reformatted, but it's not obvious to me (a home Linux newbie) how to go about it.