Once you have the necessary information about your sound device, you can normally obtain appropriate updated drivers specific to your hardware from the internet.Manufacturers of motherboard sound devices such as Realtek, Sigmatel and Soundmax do not usually provide any driver support to end users.
Windows XP and earlier: Click , click on the Hardware tab, then on the "Device Manager" button on the Device Manager panel.
You can also view a video of the rollback process on Windows Vista later.
If rolling back does not help or makes matters worse, go back to the "Driver" tab and click "Update Driver". If the driver provider is now Microsoft you could see if your problem is resolved, but the general recommendation would be to visit the website of the computer or motherboard manufacturer and look for appropriate drivers specific to your computer model and version of Windows.
If an update has occurred at any time, the button will be active.
You can click this button to revert the driver to its previous installation.