Windows Server 2016 build 9926

Windows Server 2016 build 9926 is a build of Windows Server 2016, leaked on 1 March 2015. This build only has installation options for Datacenter Server Core and a minimal install of the Datacenter Server. Both installations use a Command Prompt interface, but the minimal installation also includes Server Manager.

winver
"winver" now reports as "Windows Server Technical Preview 2".

Explorer Interface
To install the Explorer interface over the Command Prompt, the minimal installation must be installed. When the Server Manager launches, select "Add roles and features" in the Dashboard. Keep clicking "Next" up to Features. On the list of features, scroll down to "User Interfaces and Infrastructure" and press the small arrow next to it. On the sub-entries, select "Server Graphic Shell", then click "Next". Check "Restart the destination server automatically if required", allow automatic restarts, then click "Install".