120 Users ManualQ2 When you connect to a Web site, you see the message, “To help protect yoursecurity, Internet Explorer stopped this site from installing an ActiveX con-trol on your computer” or “This site might require the following ActiveXcontrol” below the address bar.A Windows XP SP2 blocks unsigned ActiveX controls from being installed when con-nected to certain Web sites for security reasons. On some Web sites that have no Ac-tiveX controls installed, applications are not started or do not display properly.In this case, to install ActiveX controls, right-click the notification area to displaya menu from which you can select Install ActiveX control.Q3 When you see a Windows Security Alert icon ( ) appear on the right partof the task bar.With the Security Center feature added, Windows XP SP2 checks the Firewall,the automatic updates configuration and installation of virus-checking programsto display a Windows Security Alert icon on the right part of the task bar when itjudges that the computer is vulnerable to attacks from the Internet. In this case,check the following to install the necessary components.A1 Set up the Windows Firewall.When you set up the Windows Firewall, you will be protected from unauthorizedaccess through the Internet or the network.z Click on Windows Firewall in Start > Control Panel > Security Center > Man-age security settings for.x From the General tab of Windows Firewall, select ON (recommended).c If you want to allow a certain program or service to gain access to your com-puter using the Firewall, select and check the program or service that you wantto allow access from, in the Exceptions tab of the Windows Firewall. If you wantto add a program to Programs and Services, click on Add Program and select it.A2 Set up Windows Automatic Updates.This automatically downloads and installs critical updates via the Internet to keepyour computer up to date.z Click on Automatic Updates in Start > Control Panel > Security Center > Man-age security settings for.x From general tab of Automatic Updates window, select Automatic (recommended).A3 Keep your computer current with the latest virus updates. (ex: Norton Antivirus)Even when you have installed Norton AntiVirus on your computer, Windows cannotrecognize the program until you configure the settings, displaying a Security Alert icon.