Until I came to this class, I thought that the firewall was just another net for an anti virus to use to make sure that no virus came through it. Which it can be, although it is more than just that, it can be the reason why someone can't come hack through your computer and steal.
A firewall is there to limit the operations of information and things that are allowed to take information from your computer. If you are in a private network at home and/or at work, it would be provided that you may use more software to operate. Unlike when you are at a public place, there are many software that you may not need that can store sensitive information.
This is when the Window's Firewall shines, it allows the software to only have access to the internet when you are in a secured network; Rather then running the possibility of anyone trying to have access to your computer, firewall stops the access in total.
I have made adjustments to my desktop and laptop so that I may be able to use it in public and know that some of my information will be safe and that I won't have to worry so much about certain software to be compromised.