To try to identify why your laptop is not recognizing an external CD/DVD drive, here are some steps you can try:
- Make sure the drive is properly connected to the laptop.
- Check the drive in the device manger to see if it is recognized.
- Try a different USB port.
- Check to see if the CD/DVD drive is listed in BIOS.
- See if drivers need to be updated.
- If the drive is external, ensure you have the power adapter and that it is connected.