No audio device showing

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sooty - 28 Oct 2008 à 06:48
rubrami281 Posts 164 Registration date Tuesday 30 September 2008 Status Member Last seen 3 February 2009 - 28 Oct 2008 à 19:19
Hello,
We have a compaq pc - have been having problems with sound and volume device have tried all sugestions on forum but nothing seems to be working dont even have media icon in taskbar and when go into audio and sound and reinstall driver on the only one saying no device will not allow to reinstall - - any suggestions driving me up the wall must be so simple
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rubrami281 Posts 164 Registration date Tuesday 30 September 2008 Status Member Last seen 3 February 2009 104
28 Oct 2008 à 19:19
1.Start Registry Editor (Regedt32.exe).

This can be done by opening the start menu and left clicking RUN, another option is pressing the windows logo key on the keyboard

together with the R key, in the box you type regedit and click OK ( or enter on your keyboard )
2. Find the right key in the registry.

Locate the UpperFilters value under the following key in the registry:

HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Class > {4D36E965-E325-11CE-BFC1-08002BE10318}

When you see the UpperFilters key left click it and press delete, you will be asked for a confirmation, just click YES

Now do the exact same but with the Lowerfilters.
3. Reboot the computer

Now restart your computer and you should have a working CD/DVD drive once more !

CONCLUSION:

Some CD/DVD writing software change the filters in the registry to there own, this can sometimes cause problems.

By deleting these value's windows puts them back on default after a reboot.