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System Requirements for Update Management

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System Requirements for Update Management

Before you can begin to optimize your Windows Server Update Services (WSUS) infrastructure to support update management, you should confirm that the infrastructure meets the following minimum requirements:

Hardware Requirements and Database Requirements

Hardware and database software requirements are driven by the number of client computers being updated in your organization. The following tables offer guidelines for server hardware and database software, based on the number of client computers being serviced. A WSUS server using the recommended hardware can support a maximum number of 15,000 clients.

Table: Hardware Recommendations for 500 or Fewer Clients

RequirementMinimumRecommended
CPU750 megahertz (MHz)1 gigahertz (GHz) or faster
RAM512 megabytes (MB)1 gigabyte (GB)
DatabaseMicrosoft SQL Server 2005 Desktop Engine (Windows) (WMSDE) or Microsoft SQL Server Desktop Engine (MSDE)WMSDE/MSDE

Table: Hardware Recommendations for 500 to 15,000 Clients

RequirementMinimumRecommended
CPU1 GHz or faster3 GHz dual processor computer or faster (use dual processors for over 10,000 clients)
RAM1 GB1 GB
Database SQL Server 2005 SQL Server 2005
Software Requirements
  • Servers hosting WSUS
    • Microsoft Windows Server 2003 with Service Pack (SP) 1
    • Microsoft Internet Information Services (IIS) 6.0
    • Microsoft Internet Explorer 6.0 with Service Pack 1
    • Current security updates
    • System partition and the partition on which you install WSUS must be formatted with the NTFS file system
  • Clients that can be managed with WSUS
    • Windows Server 2003
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