Enable the Windows Fife Wall

1. Choose Starts Control PaneK System and Security1^ Windows Firewall.

2. In the Windows Firewall window that appears (see Figure 15-3), check that the Windows Firewall is marked as On. If it isn't, click the Turn Windows Firewall On or Off link in the left pane of the window.

3. In the resulting Customize Settings window (see Figure 15-4), select the Turn on Windows Firewall radio button for Home or Work (Private) Network Location Settings and/or Public Network Location Settings and then click OK.

ft. Click the Close button to close the Windows Security Center and the Conttol Panel.

A firewall is a program that protects your computer from the outside world. This is generally a good thing, unless you use a Virtual Private Network (VPN). Using a firewall with a VPN results in your being unable to share files and use some other VPN features.

Antivirus and security software programs may offer their own firewall protection and may display a message asking whether you want to switch. Check their features against Windows and then decide, but usually most firewall features are comparable. The important thing is to have one activated.

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Figure 15-3: The Windows Firewall window

Figure 15-4: The Customize Settings dialog box

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