Windows Server 2012
Windows Server 2012, codenamed "Windows Server 8", is the sixth release of Windows Server. It is the server version of Windows 8 and succeeds Windows Server 2008 R2. Two pre-release versions, a developer preview and a beta version, were released during development. The software was generally available to customers starting on September 4, 2012.It's mainstream support 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 (free for Azure Virtual Desktop users). It allows to purchase Security Updates for 3 years, in early installments. Security Updates are available for the operating system until October 13, 2026.