DVD drive not recognized

[mky-32]

Hello,
Would someone kindly explain what this is? HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Then delete the upper and lower filters....

What are upper and lower filters?

Thanks.

 

[Jonmor68]

That is a solution to most missing cd rom problems, more info.
http://www.randomfix.com/2007/04/12/windows-vista-%E2%80%93-missing-cddvd-rom-drive/