Step 1: Confirm WSUS 3.0 SP2 installation requirements
Applies To: Windows Server Update Services, Windows Small Business Server 2011 Standard, Windows Server 2008 R2, Windows Server 2003 with SP2, Windows Server 2008 R2 with SP1
Before you install or upgrade to Windows Server Upgrade Services 3.0 Service Pack 2 (WSUS 3.0 SP2), confirm that both the server and the client computers meet the minimum system requirements and confirm that you have the necessary permissions to complete the installation.
Server hardware and software requirements for installing WSUS 3.0 SP2
Confirm that the server meets the minimum system requirements for hardware, operating system, and other required software. Detailed system requirements are listed in the WSUS 3.0 SP2 System Requirements section of the WSUS 3.0 SP2 Deployment Guide. If you are using Server Manager to install the WSUS 3.0 SP2 Server, you can confirm that you meet the software requirements by following the steps in the Preparing to install WSUS 3.0 SP2 section.
If you install roles or software updates that require you to restart the server when installation is complete, then restart the server before you install WSUS 3.0 SP2.
Client software requirements
Automatic Updates is the client of WSUS 3.0 SP2. Automatic Updates has no hardware requirements other than being connected to the network.
Confirm that computer on which you are installing Automatic Updates meets the WSUS 3.0 SP2 system requirements for Client computers. Detailed system requirements are listed in the WSUS 3.0 SP2 System Requirements section of the WSUS 3.0 SP2 Deployment Guide.
If you install software updates that require you to restart the computer, restart it before you install WSUS 3.0 SP2.
The following permissions are required for the specified users and directories:
The NT Authority\Network Service account must have Full Control permission for the following folders so that the WSUS Administration snap-in displays correctly:
%windir%\Microsoft .NET\Framework\v2.0.50727\Temporary ASP.NET Files
Confirm that the account that you plan to use to install WSUS 3.0 SP2 is a member of the Local Administrators group.
Preparing to install WSUS 3.0 SP2
You can install the WSUS server software using two different methods: through the user interface (Server Manager) or in unattended mode (WSUSSetup.exe). You must install WSUS on at least one server.
For more information about installing WSUS, see the Install the WSUS 3.0 SP2 Server section of the WSUS 3.0 SP2 Deployment Guide.
To prepare to install the WSUS 3.0 SP2 Server by using Server Manager
Log on to the server on which you plan to install WSUS 3.0 SP2 by using an account that is a member of the Local Administrators group.
Click Start, point to Administrative Tools, and then click Server Manager.
In the right side pane of the Server Manager window, in the Roles Summary section, click Add Roles.
If the Before You Begin page appears, click Next.
On the Select Server Roles page, confirm that Application Server and Web Server (IIS) are selected. If they have been selected, use the remainder of this step to confirm that the required role services are selected. Otherwise, install Application Server and Web Server (IIS) as follows.
On the Select Server Roles page, select Application Server and Web Server (IIS). Click Next.
If you are installing Application Role Services, on the Application Server page, click Next. On the Application Server Role Services page, accept the default settings, and then click Next.
If you are installing Web Server IIS, on the Web Server (IIS) page, click Next. On the Web Server (IIS) Role Services page, in addition to the default settings, select ASP.NET, Windows Authentication, Dynamic Content Compression, and IIS 6 Management Compatibility. If the Add Roles Wizard window appears, click Add Required Role Services. Click Next.
On the Confirm Installation Selections page, click Install.
On the Installation Results page, confirm that an “Installation succeeded” message appears for the role services that you installed in this step, and then click Close.