Microsoft introduced Windows Server 2008 R2 at the 2008 Professional Developers Conference as the server variant of Windows 7, based on the Windows NT kernel.

Windows Server 2008 R2 was succeeded by the Windows 8-based Windows Server 2012. A support program is currently available for enterprises, providing security updates for Windows 7 for up to four years since the official end of life. Official mainstream support for Windows Server 20 R2 ended on January 13, 2015, and extended support ended on January 14, 2020. A home server variant called Windows Home Server 2011 was also released. Seven editions of Windows Server 2008 R2 were released: Foundation, Standard, Enterprise, Datacenter, Web, HPC Server and Itanium, as well as Windows Storage Server 2008 R2.

Microsoft stopped providing security updates and technical support for Windows Server 2008 R2 RTM since April 9, 2013, and Service Pack 1 must be installed to continue receiving support and updates on any given Windows operating system. It is built on the same kernel used with the client-oriented Windows 7, and is the first server operating system released by Microsoft to exclusively support 64-bit processors. It is the successor to Windows Server 2008, which is derived from the Windows Vista codebase, released the previous year.Įnhancements in Windows Server 2008 R2 include new functionality for Active Directory, new virtualization and management features, version 7.5 of the Internet Information Services web server and support for up to 256 logical processors. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. Windows Server 2008 R2 is the fifth version of the Windows Server operating system produced by Microsoft and released as part of the Windows NT family of operating systems. Installing Service Pack 1 is required for users to receive updates and support after April 9, 2013. This program allows volume license customers to purchase, in yearly installments, security updates for the operating system through at most Januonly for Standard, Enterprise and Datacenter volume licensed editions. Windows Server 2008 R2 is eligible for the paid for ESU (Extended Security Updates) program. Mainstream support ended on January 13, 2015. Windows Update, Windows Server Update Services, SCCMĬommercial software ( Retail, volume licensing, Microsoft Software Assurance)

Source-available (through Shared Source Initiative).

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