WD Unlocker Replace My D Drive


I’m having problem using my CD/DVD now as the WD Unlocker replaced and occupied the D: Drive. How can I change the drive for the Unlocker and retrieve back the D for my CD/DVD Drive?  Else, can I delete the D drive thus deleting the Unlocker? 

Try Giving the unlocker a different drive letter in Disk Management and change the CD drive back or just assign the CD drive a new letter.