To ensure that the most recent security updates are applied, you need to install all of the latest service packs and/or individual updates on your system.
The scan report identifies which service packs and/or security updates are missing on your computer, along with links to the Microsoft security bulletins for the missing items. Users can click on the link in the security report to view the Microsoft security bulletin, which includes the install location for the security update. The Windows Update Web site also has the latest service pack and security update releases available for you to download for the Windows operating system and its components. NOTE: Windows Update does not carry non-Windows security updates such as SQL Server or Exchange updates, and users should view the Microsoft security bulletins for these product security updates using the links provided in the MBSA scan report.
In addition, customers can subscribe to the Microsoft Security Notification Service, a free service that sends e-mail to users when new security bulletins are released.
Microsoft Hotfix and Security Bulletin Service
Microsoft Strategic Technology Protection Program
Microsoft Software Update Services
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