Shutdown the computer, then remove the ribbon cable CD/DVD from the drive,
you can leave the four wire power cable connected.
Next boot the PC without the drive connected, logon to your account and then
after all the background apps (AV, Firewall, Etc.) have finished loading
once again shutdown the PC. With the PC power off re-attached the ribbon
cable to the CD/DVD drive and once again power up the PC and log on. Windows
should indicate that it has found a new device and loaded the drivers. Now
check to see if the drive is recognized.
JS