Windows Server 2012 A version of the Windows NT operating system Windows Server 2012 Start screen Developer Microsoft Source model Closed source / Shared source Released to manufacturing August 1, 2012 (2012-08-01) General availability September 4, 2012 (2012-09-04)[1] Latest release R2 6.3 (Build 9600) / October 17, 2013 (2013-10-17)[2] Update method Windows Update, Windows Server Update Services, SCCM Platforms x64 Kernel type Hybrid License Commercial proprietary software Preceded by Windows Server 2008 R2 Succeeded by Windows Server 2012 R2 Windows Server 2016 Official website www.microsoft.com/en-us/server-cloud/windows-server/default.aspx Support status Start date: October 30, 2012[3] Mainstream support: Until October 9, 2018 Extended support: Until October 10, 2023