Sound not Working After Windows Update

You may experience a situation where your sound stops working or does not work correctly after a Windows update. Performing the following steps will help you resolve the issue.

1st Step

1. Run the Windows Audio Troubleshooter which is found in this Microsoft Knowledge Base article Fix sound problems.

If the issue persists follow these steps:  

(instructions for each step are detailed in the Microsoft Fix sound problems article by selecting the topic headers from the drop down menu)

1. Use Device Manager to update or reinstall the audio driver    (Article section - Check Device Manager)
2. Make sure the correct audio device is set as the default    (Article section - Set default device)
3. Turn off Audio Enhancements    (Article section - Turn off audio Enhancements)
4. Try another audio format    (Article section - Try different audio formats)

For additional information refer to Dell Knowledge Base article Sound/Audio Problems in Microsoft Windows.