In this how to video, you will learn how to turn off the Windows firewall in Windows XP. This is useful if you would rather use a third party firewall to protect your computer instead. First, go to start menu and click run. Type in firewall.cpl and press okay. The firewall will now open. You will see that the firewall is on. To turn it off, select off. It will say it is not recommended, but if you must turn it off, this is the easiest way to do it. Click okay to complete the process. Your Windows firewall is now off.