win95 cd rom drive letter

Question I was checking properites in device manager on CD Rom and under settings tab. I clicked reserve drice box and highlighted D drive. It was still highlighted when I clicked ok. I was just looking at optional things because my CD Rom wasn't reading. What this done was now not allow windows to recognize the D drive which is my CD Rom, When I tried to go back and undo this the settings tab it no longer was there and I can not figure out in Regedit or any where else how to change this back so the CD Rom drive will be noticed. Can you guide me on how to undo this mistake I made. Thanks

 

Try Pressing F5 when you see Starting Windows 95, and select to go into Safe Mode. Then go into Device Manager and Remove all CD entries, then reboot.