Windows 8.1 HyperV notes

Hyper-V is a Feature you must install.

Hyper-V has no import of Vmware vm's unless they reside on a esx host.

You cannot import a vm from an image backup -- it must be the same hardware.

The only way I could find to import the vm's was to convert the disk image with winimage.

Hyper-V only has 4:3 video aspect ratio and fixed resolutions, because of this I run the vm's in RDP.

See for Microsoft's converter

Hyper-V does mount and boot any bootable disk. You can run each vm on its own disk (much faster).

You can install Windows 8.1 on a new disk and then run your old image as a vm with no problem.