It maybe that you need to go into Advanced BIOS settings to make sure that your CD drive is being recognised as the one to boot from.
Scroll all the way down to see all the possible boot devices and choose your cd device as the first drive.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?