After finally getting WorkstationPro15 working by using the methods suggested for disabling it, there was roughly 3 days before it was auto corrected. Is there any product by VMWare or anyone else that anyone knows of that will work with Device Guard enabled?
That would be for creating a simple VM for XP within WIN10x64.
As far as I know, only one hypervisor can be presented in a machine.
More than one cannot be presented in a machine at the same time.
So, it's actually not a problem with VMware, it's a limitation of hypervisor technology such as Intel VT-x or AMD-RVI and so on.