But has WiFi worked on your computer before or has it never worked? Please specify the exact make and model of your computer, is it a desktop PC or a laptop?
If you are having trouble uploading a screenshot, go to Device Manager, expand network adapters, take a picture with your phone of that page and send it here.
Or follow here: https://answers.microsoft.com/en-us/feedback/forum/all/how-to-include-a-screenshot-in-your-post/2594b08e-32a3-476a-85a6-b021181be7e4