In the System window, select Security and Maintenance in the lower-left corner. The Security and Maintenance window appears, as shown. Another way to open the Security and Maintenance window is to type Security and Maintenance in the Search box on the Windows taskbar.
Windows Security Center is a component of the Windows operating system, that was introduced by Microsoft in Windows XP and included in Windows Vista too. The program helped you keep a check on your system, by monitoring regularly the status of several security issues like: Firewall settings.
Security and Maintenance (formerly known as Action Center, and Security Center in earlier versions) is a component of the Windows NT family of operating systems that monitors the security and maintenance status of the computer.