Device Manager

1.  Click on the Start button, Right click on Computer, select Properties




2.  Here you can see the basic system properties. On the left side, click on Device Manager.




3.  Click on the (+) Plus sign on any device group to expand its view and see more devices in that group. Click on the (+) sign for Network adapters.




4.  Here you can see a small arrow Icon facing down on the LAN adapter "Nvidia nForce Networking Controller". This means that the item is disabled.
Double click on it for more infomation on the device.




5.  Click on the Enable Device to enable it and start using it.