Do as below:
1. In the search box on the Taskbar, type Device Manager, and then select Device Manager from the list of results.
2. In Device Manager, select Network adapters -> the network adapter name.
3. Right click the network adapter, and then select Uninstall device- > Delete the driver software for this device check box -> Uninstall.
4. After uninstalling the driver, select the Start button -> Power -> Restart.
Check if your Network adapter is visible after restart.
Good Luck.
Peace.