How do I protect my wireless laptop connection so others can't look at my computer?

I'm using my neighbors wireless network for my laptop at home, with his permission.



Now I want to make sure that they can't look at my computer and what I'm doing.



How do I do this?How do I protect my wireless laptop connection so others can't look at my computer?
if your the owner of your wifi router you can put a password on it

that way in order to get to ur computer they have to know ur router password to access anythingHow do I protect my wireless laptop connection so others can't look at my computer?
i'm just a student but i believe if you buy trojan spy-ware it can help you out with your problem

reformat laptop hard drive