Why did the Client Security Agent fail the Windows test?
Many viruses exploit weaknesses found in the Windows operating system. Microsoft regularly releases new updates to patch these known flaws. To limit the chances of a virus infecting your computer, you must regularly install the latest Microsoft updates. To pass the CSA, you must have the latest operating system service pack and major vulnerability patches installed. If the most recent service pack or major vulnerability patches are missing, you must visit http://www.windowsupdate.com (in Internet Explorer) to download and install the required updates.