Most use the default Windows drivers - try the below methods and if no joy then check with your System
maker and the actual device maker's sites.
Please do all the below even if you have done some before as it is often the total process which solves
Try this - Control Panel - Device Manager - CD/DVD - double click the device - Driver's Tab - click
Update Drivers (this will likely do nothing) - then RIGHT CLICK the drive - UNINSTALL - REBOOT
this will refresh the default driver stack. Even if drive is not shown continue below.
Then work your way through these - remember the drive could be bad, could have a loose cable or
slight corrosion on the contacts (usually for a laptop) and other issues.
Another possibility is that the cables are loose. Remove ALL power, then check cables in both
ends. Remove and replace, do not just snug. For laptops you can often clean the power and
data contacts with a pencil eraser.
Some DVD drives do not use the Windows default drivers so check with the System maker and
device maker to see if there is firmware or drivers for you drive if needed.