1. Go to your desktop and right-click on "My Computer" and choose 'Properties'

  2. Left-click on the "Hardware Tab" and then left-click on 'Device Manager...'

  3. Look for "Sound, video and game controllers". Left-click on the + sign to expand that tree.

  4. Locate the appropriate sound device and left-click on it.
  5. Press the "Delete" key. A prompt box should appear:
    Warning: You are about to uninstall this device from your system.
    Press OK.

Because the will be several different drivers listed, there are few that should not be deleted (not a complete list)