

Upgrade from any version of Windows Server that supports WSUS 3.2 to Windows Server® 2012 R2 requires that you first uninstall WSUS 3.2. The core scenarios where WSUS adds value to your business are: Minimizing this threat requires you to have properly configured systems, use the latest software, and install the recommended software updates. If your organization cannot determine and maintain a known level of trust within its operating systems and application software, it might have a number of security vulnerabilities that, if exploited, could lead to a loss of revenue and intellectual property. It helps you maintain operational efficiency, overcome security vulnerabilities, and maintain the stability of your production environment. Update management is the process of controlling the deployment and maintenance of interim software releases into production environments. The administrator can determine, based on network security and configuration, how many other servers connect directly to Microsoft Update. In a WSUS implementation, at least one WSUS server in the network must connect to Microsoft Update to get available update information.

The WSUS server that acts as an update source is called an upstream server. In addition, a WSUS server can be the update source for other WSUS servers within the organization.

The WSUS server provides the features that administrators need to manage and distribute updates through a management console. Windows Server Update Services 3.0 SP2 on TechNet: This topic provides an overview of this server role and more information about how to deploy and maintain WSUS. By using WSUS, administrators can fully manage the distribution of updates that are released through Microsoft Update to computers in their network. The Windows Server Update Service (WSUS) enables information technology administrators to deploy the latest Microsoft product updates. Applies To: Windows Server 2012 R2, Windows Server 2012
