Forefront client security not updating definitions wsus
For guidance about deploying WSUS 2.0, see Deploying Microsoft Windows Server Update Services ( For guidance about deploying WSUS 3.0, see Deploying Microsoft Windows Server Update Services 3.0 ( For more information about how to use WSUS, see Microsoft Windows Server Update Services ( WSUS must be able to connect to the Microsoft Update Web site via TCP port 80 or TCP port 443.
You may need to modify firewall or router rules in your organization to allow this communication to occur.
WSUS allows you to choose whether to store information about updates in a SQL Server database or in a Microsoft SQL Server Desktop Engine (MSDE) database.
Due to the large number of Client Security updates that WSUS will be downloading from Microsoft Update, it is highly recommended that you install the WSUS server for Client Security to a SQL Server database.
After the installation and configuration of WSUS, you need to configure your clients to connect to the WSUS server to download updates. For more information about deploying Client Security to managed computers, see Deploying Client Security (
Link Id=88893) and Planning your deployment of Client Security.
WSUS gives organizations the ability to automatically download Microsoft product updates and distribute these to clients within the organization.
Internet-facing clients will only be able to get antivirus definitions from the WSUS infrastructure when they are connected to the intranet.
The guide details how to configure the shared WSUS server to download, approve, and distribute FCS definition updates.
The end result of following this guide will be all FCS clients retrieving their definition updates through an existing Configuration Manager WSUS or software update point server.
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In an enterprise environment using Microsoft Forefront Client Security (FCS), it is important to be able to quickly and easily deploy antimalware (antivirus and antispyware) definition updates throughout the organization.