If your sound card is listed but not working, try the built-in update tool first: How to Update and Install Audio Drivers on a Windows PC
: Look for a model name or number on the back of your laptop or PC case. sound driver for windows 7
: If your sound driver is missing, you might see a "Multimedia Audio Controller" under an Other devices category with a yellow warning icon. 2. Updating Sound Drivers via Windows 7 If your sound card is listed but not