I have the Dual OS Chuwi VI8, 14GB Android/14GB Windows partitions.
So I followed this document on how to install Windows 10, and everything worked.
http://forum.xda-developers.com/showpost.php?p=62120296&postcount=158
However because during the install process I chose to do a ‘Custom Install’ my Windows 10 is not activated. Apparently the only way to activate Windows 10, is to get this tablet back to windows 8.1 with Bing, then do an ‘upgrade’ after you do an upgrade once, you can then perform clean installs whenever you want. How can I get this tablet back to Windows 8.1 with Bing. I found the Tablet Rom here: http://www.needrom.com/download/chuwi-vi8-dual-os/
It is Wim files, and the install docs are in chinese. Anyone able to help me?