Windows – Cannot play sound: device being used by another application

audiowindows 7

I tried to change my speaker setup and every time I click "test" I get this error message on Windows 7 SP1. I tried running "sndvol" to view the applications list but the list is empty.

Since I tried to test the new speaker setup, I'm now left without sound for all applications and can't get sound even if I switch back.

I have not updated my sound drivers so I don't know what could have changed.

What could be causing this?

Best Answer

I had the same error on Windows 7 and managed to fix it by simply restarting the Windows Audio service. If it doesn't work, disable and re-enable the sound device using device manager.

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