Not to worry. All you have to do is to restart your computer. Windows will detect your device and automatically install a driver. Manufacturers provide Microsoft with hundreds of drivers that Microsoft adds to Windows.
In the unlikely (but possible) chance that your device manufacturer didn't provide Microsoft with a driver for that device, you still have nothing to worry about:
- If the audio device shipped with your computer, you can find a driver on the computer manufacturer's website.
- If you added the audio device to the computer yourself, you can find a driver of the website of the manufacturer of the device.
In either case, simply follow the manufacturer's installation instructions.