Hi garara,
your original post is a bit hard to decipher - it would really be helpful if you could write with proper spelling and punctuation. Sorry, no offense.
But if I understand you right, your issue is that you only have wi-fi available but really want to use an Ethernet cable to connect. And from your screenshot it's very obvious that you need drivers for your Ethernet adapter, since Windows 7 didn't find any.
Probably because it didn't have Internet access to check for drivers online.
The easiest solution would be to temporarily connect your PC via wireless and allow Windows to update your driver by searching online. If that doesn't work then get back to us and we'll help you find a driver manually.