Hi Piu,
Thanks for reporting. We are still trying to find out why such problems arise for some users, but other users can install the platform correctly. As you may find here,
#68 sometimes it helps to switch the hardware and try again.
"Enterprise edition" is a general description for everything isn't included in our platform by default (additional drivers, new hardware support, product-specific features). So there is no way to "download" it, as it will only exist after we create a customer-specific release. Can you please give me an idea of what exactly you need?