Method 1: Run the sound and hardware troubleshooter

The troubleshooter is likely to find the best sound drivers for your PC and install them automatically for you. It will be a good idea to have an internet connection so that the troubleshooter can search for drivers online.

Method 2: Install drivers manually

If the troubleshooter doesn’t install your drivers, you might try installing the sound drivers by manually invoking the device manager to look for your sound card drivers. Connect to the internet for better results.

Method 3: Look for your sound drivers online and install them

If you are unable to resolve the issue automatically, you will have to find and install your drivers manually.

How to Fix Missing  Sound  Video and Game Controllers  in Device Manager - 12