New
#1
Do you have the latest version of ViBoot?
http://updates.macrium.com/viboot/v6...ase_notes.html The top one says it fixes an issue with mounting images on some system configurations.
I suspect that it is restricted to the paid version.
Macrium ViBoot is not restricted to paid versions.
I cannot say what your issue is but have a look at this excellent tutorial.
Macrium viBoot - Create Virtual Machine using Macrium Image Windows 10 Virtualization Tutorials