rushin1nd...Pardon me for butting in. Your information is essentially correct, but the instructions are kinda difficult to follow. Also, we prefer that only members of Staff give registry editing advice...though, to your credit, you wisely suggested they back up the key before making the edit. Let's clean up your instructions a bit.
Hi bazzala...
Let's do this in steps...first:
Click Start then Run and type regedit...click "Ok"
From Registry Editor, in the left pane, expand (click the +) next to HKEY_LOCAL_MACHINE, then SYSTEM, then CurrentControlSet, then Class, then click on {4D36E965-E325-11CE-BFC1-08002BE10318}
Are LowerFilters and/or UpperFilters listed in the right pane?
wannabe1