So I have heard many stories about what the Enterprises version THEY ARE NOT WINDOWS SERVERS and NEVER will be.
First they cannot be upgraded by Windows 7.1/8.1 for free, because the SOFTWARE IS MISSING to support this Windows Store is NOT LOADED, Microsoft Edge is NOT loaded
Start Bar is empty. Its for a very specific group of customers in specialist operations who don't want any past of present updates. Many of the undocumented features Insiders in build version 9996 are present. Its got a 90 day licence, it cannot be upgraded using standard methods. Basically the picture sums it up contact support. Enterprise versions cannot house Volume Licence servers of legal or otherwise. Its go a Advanced Windows Firewall for specialist use.
The best version of Windows 10 client is the Professional version, and its a free upgrade from Windows 7 Ultimate and Windows 8.1 Professional until 29th July 2016.
The Windows 10 Enterprise: FAQ for IT professionals
Can I upgrade from Windows 7 or Windows 8.1 to Windows 10 Enterprise for free?
If you have Windows 7 Enterprise or Windows 8.1 Enterprise and current Software Assurance, you are entitled to the upgrade to Windows 10 Enterprise through the rights of Software Assurance. You can find your product keys and installation media at the Volume Licensing Service Center.