by Tina Gasperson
Windows XP comes with a built-in firewall, which is a great tool for protecting your system from unauthorized access by malicious programs that you may stumble upon while you’re online. Sometimes, however, you’ll want to turn the firewall off in order to install a desirable program or to allow a remote technician access to your computer for technical support. After that, of course, it’s important to re-enable the firewall so that your computer is less vulnerable to attack.
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