I am trying to reinstall Windows XP on my Dell Optiplex 360. I enter the boot menu and when I choose CD-ROM Drive I get this message:
Selected boot device not available. Strike F1 to reboot, F2 for setup utility. Press F5 for onboard diagnostics.
The CD works because it can auto-play when I open it in My Computer.
I don't know if this is relevant but in My Computer the drive is shown as DVD/CD-RW Drive, whereas in the boot menu or boot sequence in System Setup it is shown as Onboard or USB CD-ROM Drive.
What do I do?