The following information will help you reinstall a network adapter (also known as a network interface controller or NIC) in Windows 7.

  1. Open the Start menu from the taskbar, then select Control Panel.
control panel

 

  1. Select View by: Category in the upper right-hand corner of the window.
  2. Choose System and Security, as shown in the image below.
Click the system icon

 

  1. Select System, then Device Manager from the menu on the left.
Device Manager

 

  1. The Device Manager will display all installed and found hardware on the computer.
  2. Locate Network Adapters and select the Arrow to expand the category.
Network adapters
 
  1. The Network Interface Controller (NIC) will be listed if installed. Right-click the desired adapter, then select Properties, as shown in the image below.
Network Interface Control

 

  1. Navigate to the Driver tab in the NIC Properties.
Drivers tab

 

  1. Select Uninstall to remove the existing driver from the device manger.
  2. You'll be prompted to confirm that you want to uninstall the driver.
Confirm Uninstall

 

  1. Return to the Device Manager, then select Scan for Hardware Changes. The NIC should be reinstalled automatically.
Hardware changes

 

Note: If you experience an issue when configuring your network adapter, visit Windows Support for further assistance.