I rely on StorageCraft’s ShadowProtect (IT Edition) for creating a full disk image backup of a workstation prior to replacing the hard drive. I’ve used it literally for years.
I was setting up a Lenovo Yoga 2 Pro with Win 8.1 for a customer, and wanted to make a disk image of the laptop before proceeding. I use a bootable USB stick with ShadowProtect on it. But I was unable to boot from the USB stick on this new laptop.
The solution was simple, after contacting StorageCraft
In order to boot the ISO on the 8.1 machine you need to change the boot options on the system to Legacy instead of UEFI. Once that is done the ISO should boot with no problems.