I may be answering this the same way, but in different wording, but I had the same problem.
1. Go to your device manger and remove the audio device
2. Go into your drivers and remove the audio driver
3. From your provider reinstall the audio driver (mine was from the laptop manufacturer)
4. from your control panel add a new device and let the wizard find your audio device and reinstall it.
That worked for me, hope it works for you.