So I had old PC I wanted to reinstall windows on it so I had a usb stick which I used to reinstall it after it had done it things the PC rebooted after which I realised that my BIOS doesn't support usb boot so I installed that installation of windows on to CD (CD-R) I set my boot load to boot from CD and the Pc frozen on black screen with "Certifying DMI Pool Data ........ Boot from ATAPI CD-ROM: Press any key to boot from CD ....... " Yes I did press keys but it keeps frozen.