It's because your missing a audio driver.
Cause you didnt tell us what model laptop your using, i can only give you a driver update utility.
DriverEasy.
http://www.drivereasy.com
How does Driver Easy work?
Download and Install Driver Easy. Click "Scan Now" button to scan your computer.
Driver Easy will automatically scan and analyze your hardware devices.
Driver Easy will find all unknown and out-of-date drivers. Click "Get Drivers" button to get the latest drivers.
Just Download the drivers as you wish.
Professional version available. Driver Easy allows you to easily backup, restore & uninstall drivers.
72 views
Usually answered in minutes!
×