Have you checked in the registry editor that these keys actually exist in the registry? It is possible to perform a clean install of Macrium Reflect, it is simple and painless. Back up your definitions and assignments mr. Using Revo Uninstaller Pro Portable Trial or Paid, uninstall MR. In the RU dialogs, delete all registry keys, folders and files that he will offer to delete. This will clear the registry and directories from the remnants of MR. If RU offers to reboot, agree with it, after rebooting RU will start itself and continue uninstalling. Now do a clean install. If this does not help, then something in the system is broken. The user uses additional tools for convenience and enjoyment of work, otherwise we would still make Windows backup with built-in tools. One edits (square wheel), the second makes immediately finished (round wheel with pneumatic tires).