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Windows Server Update Services
Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a deprecated computer program and network service developed by Microsoft Corporation that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers in a corporate environment. WSUS downloads these updates from the Microsoft Update website and then distributes them to computers on a network. WSUS is an integral component of Windows Server.
The first version of WSUS was known as Software Update Services (SUS). At first, it only delivered hotfixes and patches for Microsoft operating systems. SUS ran on a Windows Server operating system and downloaded updates for the specified versions of Windows from the remote Windows Update site, which is operated by Microsoft. Clients could then download updates from this internal server, rather than connecting directly to Windows Update. Support for SUS by Microsoft was originally planned to end on 6 December 2006, but based on user feedback, the date was extended to 10 July 2007.
WSUS builds on SUS by expanding the range of software it can update. The WSUS infrastructure allows automatic downloads of updates, hotfixes, service packs, device drivers and feature packs to clients in an organization from a central server or servers.
On September 20, 2024, Microsoft announced that Windows Server Update Service would no longer be developed starting with Windows Server 2025. Microsoft encourages business to adopt cloud-based solution for client and server updates, such as Windows Autopatch, Microsoft Intune, and Azure Update Manager.
Windows Server Update Services 2.0 and above operate on a repository of update packages from Microsoft. It allows administrators to approve or decline updates before release, to force updates to install by a given date, and to produce extensive reports on which updates each machine requires. System administrators can also configure WSUS to approve certain classes of updates automatically (critical updates, security updates, service packs, drivers, etc.). One can also approve updates for detection only, allowing an administrator to see which machines will require a given update without also installing that update.
WSUS may be used to update computers on a disconnected network. This requires exporting patch data from a WSUS server connected to the internet and, using removable media, importing to a WSUS server set up on the disconnected network.
Administrators can use WSUS with Group Policy for client-side configuration of the Automatic Updates client, ensuring that end-users can't disable or circumvent corporate update policies. WSUS does not require the use of Active Directory; client configuration can also be applied by Local Group Policy or by modifying the Windows registry.
WSUS uses .NET Framework, Microsoft Management Console and Internet Information Services. WSUS 3.0 uses either SQL Server Express or Windows Internal Database as its database engine, whereas WSUS 2.0 uses WMSDE. System Center Configuration Manager (SCCM) interoperates with WSUS and can import third-party security updates into the product.
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Windows Server Update Services
Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a deprecated computer program and network service developed by Microsoft Corporation that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers in a corporate environment. WSUS downloads these updates from the Microsoft Update website and then distributes them to computers on a network. WSUS is an integral component of Windows Server.
The first version of WSUS was known as Software Update Services (SUS). At first, it only delivered hotfixes and patches for Microsoft operating systems. SUS ran on a Windows Server operating system and downloaded updates for the specified versions of Windows from the remote Windows Update site, which is operated by Microsoft. Clients could then download updates from this internal server, rather than connecting directly to Windows Update. Support for SUS by Microsoft was originally planned to end on 6 December 2006, but based on user feedback, the date was extended to 10 July 2007.
WSUS builds on SUS by expanding the range of software it can update. The WSUS infrastructure allows automatic downloads of updates, hotfixes, service packs, device drivers and feature packs to clients in an organization from a central server or servers.
On September 20, 2024, Microsoft announced that Windows Server Update Service would no longer be developed starting with Windows Server 2025. Microsoft encourages business to adopt cloud-based solution for client and server updates, such as Windows Autopatch, Microsoft Intune, and Azure Update Manager.
Windows Server Update Services 2.0 and above operate on a repository of update packages from Microsoft. It allows administrators to approve or decline updates before release, to force updates to install by a given date, and to produce extensive reports on which updates each machine requires. System administrators can also configure WSUS to approve certain classes of updates automatically (critical updates, security updates, service packs, drivers, etc.). One can also approve updates for detection only, allowing an administrator to see which machines will require a given update without also installing that update.
WSUS may be used to update computers on a disconnected network. This requires exporting patch data from a WSUS server connected to the internet and, using removable media, importing to a WSUS server set up on the disconnected network.
Administrators can use WSUS with Group Policy for client-side configuration of the Automatic Updates client, ensuring that end-users can't disable or circumvent corporate update policies. WSUS does not require the use of Active Directory; client configuration can also be applied by Local Group Policy or by modifying the Windows registry.
WSUS uses .NET Framework, Microsoft Management Console and Internet Information Services. WSUS 3.0 uses either SQL Server Express or Windows Internal Database as its database engine, whereas WSUS 2.0 uses WMSDE. System Center Configuration Manager (SCCM) interoperates with WSUS and can import third-party security updates into the product.