Win7 does not recognize the ultimate solution for the optical drive

Cause Analysis:
The problem may be caused by incorrect key values ​​in the registry.
The ultimate solution:
Tip: Modify the registry is risky, please be careful.
1. Press Win+R, enter Regedt32.exe, press Enter, open the registry editor;

2. Find the following key:
HKEY_LOCAL_MACHINE--SYSTEM--CurrentControlSet- -Control--Class--{4D36E965-E325-11CE-BFC1-08002BE10318}

3. Locate and delete UpperFilters and LowerFilters in the box on the right (see UpperFilters and LowerFilters in the box below)

4. Restart the computer and see if the Windows 7 system can recognize the CD-ROM drive.