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No Sound with Windows Vista
Microsoft Knowledge Base Article: 948481
After you install Windows Vista Service Pack 1 (SP1), you may experience one or more of the following problems with sound:
Changes to Sound Behavoir may occur because Windows Vista SP1 updates system files and many inbox device drivers to improve device reliability. To do this, the service pack will reinstall many device drivers at the end of the installation process. Some older drivers may experience an installation failure because of this process.
Note We recommend that you install the latest drivers for your hardware before you install Windows Vista SP1. When you do this, you can help avoid the problem that is mentioned in the “Symptoms” section.
To resolve this problem, use the following methods in the order in which they are presented. After you try each method, determine whether you can hear sound. To do this, play an audio file by using a program such as Windows Media Player.
Note Remember to turn the volume up on the computer speakers and on the program volume control.
Method 1: Restart the computerIt is important to restart the computer at least one time after you install Windows Vista SP1 to verify that all related processes are complete. These processes include driver installations.
After you restart the computer, determine whether you can hear sound.
Method 2: Plug the computer speakers in againMost sound cards that are compatible with Windows Vista include a feature that detects the audio jack into which the speakers are plugged. You may have to unplug the computer speakers from the sound card and then plug them back in to the same port. This procedure may enable the audio detection feature to configure the output device.
Method 3: Verify that the default output device is set correctlyAfter you install Windows Vista SP1, you may find that the default output device, also known as the playback device, has changed.
To set the default device, follow these steps:
Method 4: Verify that the sound driver is installedTo do this, follow these steps:
Method 5: Reload the current sound driverTo do this, follow these steps:
Method 6: Update the current sound driverTo do this, contact the manufacturer of the sound driver to request an updated sound driver.
Note In some cases, the manufacturer may instruct you to uninstall the current sound driver and to delete the driver files. To do this, follow the steps in Method 5, but at step 7, click to select the Delete the Driver Software for this device check box.
For information about how to contact hardware and software vendors, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:
65416 (http://support.microsoft.com/kb/65416/) Hardware and software vendor contact information, A-KMicrosoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
60781 (http://support.microsoft.com/kb/60781/) Hardware and software vendor contact information, L-P
60782 (http://support.microsoft.com/kb/60782/) Hardware and software vendor contact information, Q-Z
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about how to resolve common sound problems in Windows Vista, visit the following Microsoft Web site: