CDROM DRIVES NOT INSTALLING

NEITHER OF MY CD DRIVES BOOT UP OR SHOW UP IN DEVICE MANAGER FILES. UNDER PERFORMANCE TAB I GET THE MESSAGE “DRIVE C–D–E IS USING MS-DOS COMPATIBILITY MODE FILE SYSTEM ETC. ETC.
I CAN’T SEEM TO FIND ANY INFORMATION ON THE ABOVE PROBLEM & WHY MYSYSTEM IS BOOTING UP THIS WAY. ALL HELP WELCOME. THANKS