Windows Server 2016 build 14259

Windows Server 2016 build 14259 is a build of Windows Server 2016, that was only leaked in WIM format

Installation
This build only leaked in WIM format (different format than the ones that are used in WinPE), you can either convert the WIM to VHD or you can inject the WIM to a VHD yourself:
 * 1) 1. Partition and format a blank virtual hard drive.
 * 2) 2. Mount the drive and use an utility such as GImageX to apply the WIM to the hard drive.
 * 3) 3. Unmount the drive and install normally.