Firewall is a combination of software and hardware which is prevent from unauthorized accessing from outside of networks. Firewall is protect from internet hacker.
Follow these steps to Configure Firewall in windows 7
1. Click on Start , then Click on Control panel,then Click on System and Security on Control panel window
3. Now Click on Windows Firewall on the System and Security Section.
4. On the left pane of window click on Change notification setting to Turn on and Turn off Firewall.
5. Click on Turn on Windows firewall radio button to on firewall, under Home or work(privet) network settings.