Update audio driver / sound card driver in Windows Vista

1. Click Start, click Control Panel, and then double-click System.
2. 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.

3. Click Sound, video, and game controllers to expand.
4. 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.

5. Click Update Driver Software.
6. Follow the Update Driver Software Wizard to update the sound card driver.

Update audio driver / sound card driver in Windows XP

1. Click Start, click Control Panel, and then double-click System.
2. Click the Hardware tab.

3. Expand Sound, video, and game controllers.
4. Double-click the sound card, and then click the Driver tab.

5. Click Update Driver.
6. Follow the Hardware Update Wizard to update the sound card driver.

Note: 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

Tips: It's highly recommended to use driver updater tools as DriverScanner, Driver Detective and RadarSync (RadarSync now is published as Freeware) to update the latest drivers for your PC automatically.