To update the sound card driver, follow these steps:
Click Start, click Control Panel, and then double-click System.
Click the Hardware tab, and then click Device Manager. If you are prompted for an administrator password or for confirmation, type the password, or click Continue.
Click Sound, video, and game controllers to expand.
Under Sound, video, and game controllers, double-click the entry for your sound card, and then click the Driver tab.
Note If a Driver tab is not present, the entry that you clicked under Sound, video, and game controllers may not be the correct entry for your sound card. Try clicking any additional entries listed under Sound, video, and game controllers.
Click Update Driver Software.
Follow the Update Driver Software Wizard to update the sound card driver.
If you receive a message that the device is not working correctly, the sound card is not listed, or you must obtain driver software, contact your sound card manufacturer for more help. You may also have to contact the computer manufacturer if you find that the steps to update the sound card driver do not work.
For information about your hardware manufacturer, visit the following Web site: http://support.microsoft.com/gp/vendors/en-us(http://support.microsoft.com/gp/vendors/en-us) Microsoft 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.