Try this if sound in Windows stops working

Several of my computers have had problems with sound suddenly not working. Typically this seems to happens when switching context, such as going from plugged in to battery, but sometimes it seems random. At work we use Skype for Business. When it encounters sound problems it tends to freeze up. I’ve found the following to work at restoring sound (and S4B) again:

  1. Right click on the sound icon in system tray. Select “Playback Devices”.
  2. Double click on “Speakers / Headphones”. Go to the “Advanced” tab in the dialog that opens:
  3. Click on “Restore Defaults” or the “Test” button:

Depending on the problem you have, one of these buttons tends to restore sound playback again!

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