I really, REALLY want to keep my firewall settings on. I have Nortan Security System but I want to change it to Windows Defender. Only, I don't know how, and if I turn off the firewall, my computer is crushed. How can I do it in a safe way? 0 windows8 asked Jan 29, 2014 in Software by Federico9798 (120 points) Please log in or register to answer this question.