If you can access the BIOS menu you should be able to set CDROM as First Boot device, then try starting again with Recovery disc in drive.
To enter BIOS press F2 or Del immediately after pressing start button, this might take several attempts.
OnePlus 5T review: Hands-on
See the Best Button Badge Designs of 2017
iPhone X review
Black Friday 2017 : date, sites participants & bonnes affaires