If you are using a desktop system, open the computer case, install your Ethernet card in an empty expansion slot, fasten the card, and close the case. Most computer stores can install your Ethernet card for you. Configuring an Ethernet Card Plug in and turn on your system. If you have a new computer and a recently designed Ethernet card, it is likely your computer will automatically recognize your new Ethernet card and that Windows will automatically configure the software that is required to run your Ethernet card. You may be prompted for an Ethernet driver.
Most manufacturers provide setup instructions.
Locating the Network Control Panel To locate the Network control panel, click the Start button, then point to the Settings option. Follow the arrow to the Control Panel option. Click Control Panel. Double-click the Network icon. If the Ethernet card was successfully installed, the network control panel should look similar to the picture to the right, with your Ethernet card listed.