Look in add/remove programs for the software that you installed and uninstall if there. Then go to device manager and uninstall the cd drive. Reboot and let Windows install the drivers.
i installed an updated firmware for my
LG CD-RW GCE-8525B. while it was updating it froze, so i closed it. when i rebooted my computer, the CD-ROMS were gone, and the light doesn't even flash at startup. it's dead.