Windows Server 2016 Preview

Windows Server 2016^[1] (formerly Windows Server vNext) is an upcoming server operating system developed by Microsoft as part of the Windows NT family of operating systems, developed concurrently with Windows 10. The first early preview version (Technical Preview) became available on 1 October 2014 together with the first technical preview of System Center,^[2] and is currently in public beta testing. The final release date for the server is expected to be in early 2016, that is, not released simultaneously with the client operating system Windows 10 as was the case with the last three operating system releases.

-Wikipedia

Windows Server 2016 Preview Download
if you want other version of Server 2016 please visit Microsoft.com
---->(Windows Server 2016 only comes in x64)<----
this is the standard GUI Version

Windows© Microsoft Corporation. Windows was created under Microsoft's "Terms of use" using assets from Windows, and it is not endorsed by or affiliated with Microsoft.