No Audio Output Device is installed after Windows Update

No Audio Output Device is installed after Windows Update

Follow the steps below, then try playing an audio file after each step and determine if you can hear any sound.

Step 1. Restart your computer.

• After upgrading your computer to Service Pack 2, try to make a restart so all the changes from the installation will take effect. After the restart, try to play a sound file. If you can hear any sound then you are done, however continue with step 2.

Step 2. Plug another sound device.

• Try plugging any external sound device like headsets, or try another set of speakers. If you can hear sounds then your problem is already solved. If you still cannot hear sound, then plug the original speakers and continue with the next step.

Step 3. Unplug the speakers.

• Unplug the speakers or other sound devices, and then plug it again. Most sound cards that are compatible with Vista have a feature that detects sound devices plugged in your audio jack. After plugging it back, your computer will automatically detect it. If you can hear sounds then your problem is already solved. If you still cannot hear sound, then plug the original speakers and continue with the next step.

Step 4. Ensure that the default sound device is set correctly.

• Click Start then type Sound in the start menu search box.
• Click Sound in the search result.
• Click on the Playback tab then take a look at the check mark on the default device. Mostly, the default device is Speakers. Ensure that the audio settings are configured properly by:

•          a.) Select the playback device under Playback tab and then click Properties. Ensure that the default format under the advanced tab is set properly. Exit the window then go back to the previous window.

•          b.)Select the playback device under the Playback tab. Click Configure and ensure that the configurations are set correctly.

If all the settings for your sound are properly set, you are using speakers as the sound device and the speakers are all set as the default device. Continue with the next step now.

c.)Click Set Default after selecting the sound device that you want as the default sound device.

d.)Click OK to save your settings and close the Sound dialog box.

If you can hear any sound then you are done, however continue with the next step.

Step 5. Verify that the driver for sound device is installed.

• Click Start then type Device Manager on the search box then press Enter.
• Expand Sound, Video and Game Controllers on the Device Manager box.

If there is no yellow mark beside each driver, then the driver for your sound device is properly installed.

Step 6. Update the Sound driver.

Step 7. Reload the current driver for sound.

• Click Start then type Device Manager on the search box and then press Enter.
• Expand Sound, Video and Game Controllers.
• Locate the audio device.
• Right-click the device then click Properties.
• Click Uninstall under the Driver tab
• Ensure that the check box beside the Delete the Driver Software for this device is cleared then click OK
• Click the Action Menu under Device Manager Box and then click Scan for Hardware Changes.

You will receive a message stating that the hardware device is already installed, and then the previously uninstalled  audio device will appear in Device Manager.

• Close the Device Manager window.