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Firewalls: Windows 2000

To find out if you already have a firewall, click Start and then click All Programs, and then look for the word "firewall."

You might also see the name of a popular firewall manufacturer or package, including McAfee, Panda Software, Symantec (Norton), and others.

Windows Vista and Windows XP Service Pack 2 (SP2) both have firewalls built-in and turned on by default. Consider upgrading to Windows Vista for increased security.

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