I can't connect to anything

Hello, i am posting this with my phone.

So, earlier today i was uninstalling some stuff and accidentally got rid of a program called D-Link, which is apparently vital for my connection, troubleshooting it made it tell me to connect an ethernet cable (i don't own one). I have no idea how to install it back please help and keep in mind that it's a Windows 7 and that I'm not at all tech savvy and won't understand any complex terminology.