WSUS builds on SUS by expanding the range of software it can 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. Clients could then download updates from this internal server, rather than connecting directly to Windows Update. 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. At first, it only delivered hotfixes and patches for Microsoft operating systems. The first version of WSUS was known as Software Update Services (SUS). WSUS is an integral component of Windows Server.

WSUS downloads these updates from the Microsoft Update website and then distributes them to computers on a network. Windows Server Update Services ( WSUS), previously known as Software Update Services ( SUS), is a 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. com /en-us /windows-server /administration /windows-server-update-services /get-started /windows-server-update-services-wsus Package management, remote administration WSUS can display precise information about which updates each client needs

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