New laptops with UEFI bios may make it hard to find specific boot up options like "cd/dvd drive." Those options are usually present on computers with legacy bios options enabled.
On UEFI machines, the boot up options are usually available by hitting the quick boot menu, which is a different key than the bios prompt.
When you start your laptop, hit F12. That should bring you to the quick boot menu. There, you will see a list of boot up options. The CD/DVD drive option should be there as well as USB.
Good luck!