If the download of a critical or security patch is interrupted, Windows Update will restart the download at the point where the interruption occurred.In a system upgraded with Service Pack 2, automatic update will install critical and security patches. In the past, the automatic updates feature would only install critical patches.It can block incoming probes and attacks from the Internet, but it can not block programs on the hard drive from sending data out to the Internet.the ability to block applications from receiving data over insecure networks e.g. It offers more configuration options: e.g.The Internet Connection Firewall (ICF) was difficult to access in earlier versions of Windows XP but the new version has been renamed “Windows Firewall” and is part of the “Security Center”. Select Apply, and reboot for the changes to take effect.In the “Startup type” drop-down option, change it from “Automatic” to “Disabled”.Close the Service Center by selecting “Stop” under the “Service Status:” text the “Service status:” text should change from “Running” to “Stopped”.In the Services dialog box, select “Security Center” by double clicking on it.In the Run Dialog box, type “services.msc” You may wish to disable the security center which always runs on startup on installing SP2. the anti-virus software has not been updated or the firewall is not configured properly. Security Center runs in the background and displays an icon in the system tray whenever it detects a security related vulnerability e.g. Users will have to launch the individual third-party programs to change the settings, apply updates, etc. Security Center creates a direct link to both the Automatic Updates and the Windows Firewall settings and integrates with third-party antivirus software to alert the user about outdated anti-virus definitions. The most obvious new security measure is the new “Security Center” which allows users to manage the security setting in Windows.

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