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Volume Mixer Resets to 0
Volume Mixer Resets to 0; will not allow any adjustment. This problem started a few days ago after a Windows update. Then the System Restore was run to prior the Win update. Only helped for a few minutes.
Dell Precision M6300 [64 bit]; Win 7 SP1 Pro Ultimate
Have tried the following:
Set Control Panel > Hdw & Sound > Sound > Communications > Do Nothing
Ran System Restore
After System Restore failed, I installed Windows Codec 4.1.0 4.1.0 [didn’t help].
This problem started a few days ago after a Windows update. Then the System Restore was run to prior the Win update. Volume Mixer Resets to 0; will not allow any adjustment.
Often, if not in focus cannot bring some applications back into focus directly [1st need to minimize other applications or close it with Win Task Manager].
Happens when only running Chrome; also with other programs.
Runs OK for a few minutes after restarting Windows
Device Manager reports all Ok; all drivers up to date including High Definition Audio Device.