Recently I acquired an old computer from a friend, but he needed the hard drive because it had photos on it, so I went out and bought a new hard drive to install a copy of windows 10 (disc). The computer is a Studio XPS, which had originally come with windows XP. I can only access bios currently and every time I try to boot from the disc, it says CD-ROM boot priority ... no medium reboot and select proper boot device. I read other forums saying to switch priority but it hasn't helped at all.