Computer internet problems?

[Amber]

I have a Lenovo computer and it came with a lot of programs that I wanted to erase I started erasing a lot of programs but I realized I wasn't connected to the internet anymore I have no idea what i did and how I can fix it, the internet is not broken because my sister can access it on her computer it's just not working on mine everytime I connect it the cables username doesn't even show up either please help me

[Tech]

It seems like u have mistakenly UN-installed your network card driver. Now the best way to fix this problem is to visit your PC manufacturer`s website and enter your machine`s model number to download the network driver and just simply re-install it. This shall not only solve your problem but also you would be able to start using internet again. Good Luck