You won’t enjoy your PC very much when it does not play sounds, and neither can you use your microphone for voice input.
However, when you place your mouse over the Speaker icon, you see a message that says, ‘No audio output device is installed.’ What a bothersome sight. So, you think that you probably turned down the volume too low or set it to mute. You might see the Speaker icon in your taskbar with a red x on it.
You notice that your computer is not playing any sound.