I can't connect my hp laptop to the school's Wi-Fi?

My iphone and my friends' mac can connect but my pc can't. Does it have to do with a certiicate? When my iphone connects or macs there's a certificate thing that appears and needs to be accepted. Nothing like that comes up on my hp. I'm typing the right username and password but still has an error when connecting. I desperately need help!

You still need to type in the network id or you can ask the school id dept for assistance.sorry