How to Tell If Windows Firewall Is Installed

Windows Firewall is an Internet security software system released by Microsoft for use with its Windows operating systems. The aim of Windows Firewall is to limit a user's exposure to potential security threats while on the Internet. Computers running Windows Vista or XP with Service Pack 2 should have Windows Firewall installed, but if you are unsure, you can check Windows Firewall with a few simple steps.

Instructions

1. Click "Start," then right click "My computer" or "Computer." Then select "Properties."

2. Check the information listed to see what version of Windows you are using. If you are running Vista or Windows XP Service Pack 2, you will have Windows Firewall installed.

3. Click "Start," then "Control Panel."

4. Double click on "Security Center."

5. Examine the "Security Center" window for "Windows Firewall." If it's present, you will know it is installed.

Tips & Warnings

• Windows Firewall can be disabled if it interferes with programs you are using. Programs can be set as an exception to Windows Firewall. Connecting to the Internet through a router will add another level of protection beyond Windows Firewall because many routers have their own firewalls and other security measures. Another easy way to check for Windows Firewall is to use the search function under the "Start" menu and search for "firewall."