If the driver is already on your system but isn't working correctly, you can reinstall it through the Device Manager. Right-click the Start button and select Device Manager.
The easiest way to install a network driver is to let Windows do the work for you. Microsoft maintains a massive library of drivers that are tested for compatibility. how to install driver for network adapter
Connect your computer to the internet via an Ethernet cable if Wi-Fi is not working. Click the Start button and select Settings. Navigate to Windows Update or Update & Security. Click Check for updates. If the driver is already on your system