Unless you stayed disconnected after that screen, that's not necessary. Activation happens automatically later.
Do you happen to have a direct link for the enterprise ISO? en_windows_technical_preview_for_enterprise_x64_dvd_5554079.iso
Yeah but you can't remove the search icon or the task switcher next to the start button.... AND WHY THE f**k IS THERE A NEW TOTALLY USELESS "Home" Page on the File explorer, which doesn't even show local drives...
I hope when 10 is finally released they provide a different startmenu design like the one in Windows 7. Sorry but I don't like the "edged" design Apart from that: MS is going into the right direction with 10.