Solve the solution of win8 system CD-ROM can not identify the disc

Nowadays, computer users with optical drives can install computer systems directly through the system CD. However, some users have recently found that the win8 system does not recognize the problem of dvd discs. The inability to recognize dvd discs means that we cannot install them via CD. The game software or read the contents of the dvd, usually solve the problem, we will reinstall the corresponding CD-ROM drive, but if you can not solve the problem that the CD-ROM drive can not recognize the dvd disc, how can it be done? Everyone has brought another solution, I hope to help you!
Solve the problem of Win8 system CD-ROM can not identify the disc
Step 1: Prime Minister we need to open the registry, can be combined by Win+R Open the run box, enter "Regedt32.exe" in the run box and press Enter to enter the registry!
Step 2: In the open registry, expand the lower key value in turn!
HKEY_LOCAL_MACHINE---- -SYSTEM - CurrentControlSet ----- Control ---- Class ------ {4D36E965-E325-11CE-BFC1-08002BE10318}

step : We find and delete the UpperFilters and LowerFilters in the right side of the box (as shown below in the box to find UpperFilters and LowerFilters)

by several above simple operation, we will be able to make the correct identification dvd drive CD-ROM data