Does Macrium Reflect do a hardware check to verify that the license is still on the same machine every time the program is launched? Are there certain BIOS settings that can trigger a hardware configuration change and invalidate the license? Does Macrium Reflect v6 automatically unregister the license key when uninstalling the software from control panel?
I don't know that it would be prudent for Macrium to be too forward with regard to its copy protection technology in Reflect. As for your third question, however, I can say that v5 did not automatically unregister the license during uninstall. I would assume v6 is the same way. There is an option under the Help menu to uninstall the license.