Screenshot of Windows Server 2012, showing the Server Manager application which is automatically opened when an administrator logs on, taskbar, and the blue color of Aero Lite
6.2 (Build 9200) / August 1, 2012; 11 years ago (2012-08-01)[2]
Marketing target
Business
Update method
Windows Update, Windows Server Update Services, SCCM
Platforms
x86-64
Kernel type
Hybrid (Windows NT kernel)
Default user interface
Windows shell (GUI)
License
Commercial proprietary software
Preceded by
Windows Server 2008 R2 (2009)
Succeeded by
Windows Server 2012 R2 (2013)
Official website
Windows Server 2012 (archived at Wayback Machine))
Support status
Start date: October 30, 2012[3]
Mainstream support ended on October 9, 2018[3]
Extended support ended on October 10, 2023[3]
Paid support via the Extended Security Updates program until October 13, 2026, only for volume licensed editions.
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Windows Server 2012, codenamed "Windows Server 8", is the ninth version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. It is the server version of Windows based on Windows 8 and succeeds Windows Server 2008 R2, which is derived from the Windows 7 codebase, released nearly three years earlier. Two pre-release versions, a developer preview and a beta version, were released during development. The software was officially launched on September 4, 2012, which was the month before the release of Windows 8.[4] It was succeeded by Windows Server 2012 R2 in 2013. Mainstream support for Windows Server 2012 ended on October 9, 2018, and extended support ended on October 10, 2023. Windows Server 2012 is eligible for the paid Extended Security Updates (ESU) program, which offers continued security updates until October 13, 2026.
Windows Server 2012 removed support for Itanium and processors without PAE, SSE2 and NX.[5] Four editions were released. Various features were added or improved over Windows Server 2008 R2 (with many placing an emphasis on cloud computing), such as an updated version of Hyper-V, an IP address management role, a new version of Windows Task Manager, and ReFS, a new file system. Windows Server 2012 received generally good reviews in spite of having included the same controversial Metro-based user interface seen in Windows 8, which includes the Charms Bar for quick access to settings in the desktop environment.
Windows Server 2012 is the final version of Windows Server that supports processors without CMPXCHG16b, PrefetchW, LAHF and SAHF. Its successor, Windows Server 2012 R2, requires a processor with CMPXCHG16b, PrefetchW, LAHF and SAHF in any supported architecture.
As of April 2017, 35% of servers were running Windows Server 2012, surpassing usage share of Windows Server 2008.[6]
^ abc"Microsoft Product Lifecycle". Microsoft Support. Microsoft. January 2012. Archived from the original on February 27, 2013. Retrieved October 10, 2012.
^Snover, Jeffrey (August 1, 2012). "Windows Server 2012 released to manufacturing!". Windows Server Blog. Microsoft. TechNet blogs. Archived from the original on December 22, 2015. Retrieved January 29, 2013.
^Foley, Mary Jo (April 5, 2010). "Microsoft pulls the plug on future Itanium support". ZDNet. CBS Interactive. Archived from the original on August 12, 2012. Retrieved January 1, 2012.
^"Windows Server 2012 approximately equal to Windows Server 2008". SmartProfile. August 25, 2017.
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