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How to Enable a Windows Firewall
- 1). Click the "Start" menu and select "Control Panel."
- 2). Double-click the "Security Center" icon (Windows XP) or click "Security" link (Windows Vista and 7).
- 3). Click "Windows Firewall" (Windows XP) or "Turn Windows Firewall on or off" (Windows Vista and 7).
- 4). Click the "General" tab. Check the "On (recommended)" radio button, and click "OK" to close the window.
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