It sounds like you may have an issue with your computer recognizing the CD-DVD ROM drive. This can sometimes be caused by a problem with the drivers for the drive, an issue with the connection between the drive and the motherboard, or a problem with the drive itself.
First, try restarting your computer and see if that fixes the issue. If that doesn't work, you can try updating the drivers for the CD-DVD ROM drive. To do this, open the Device Manager by pressing the Windows key + X and selecting "Device Manager" from the menu. In the Device Manager, look for the CD-DVD ROM drive under the "DVD/CD-ROM drives" section. Right-click on the drive and select "Update Driver" from the menu. This will open the Update Drivers wizard, which will guide you through the process of finding and installing updated drivers for the drive.
If updating the drivers doesn't fix the issue, you may need to check the connection between the CD-DVD ROM drive and the motherboard. Make sure that the cable connecting the two is securely attached at both ends, and that there are no loose connections or damaged wires. If you're not sure how to do this, it may be best to consult the user manual for your computer or contact the manufacturer for assistance.
If the problem persists, it is possible that the CD-DVD ROM drive itself may be faulty and will need to be replaced. In this case, you may need to consult a computer technician or contact the manufacturer for assistance.
I hope this information helps. Let me know if you have any other questions.