An .iso file is just an image. To actually boot from it, you need to write it to a physical drive correctly. You must use an "ISO writer" tool.
Allows you to restore a full disk image if your primary drive crashes or becomes corrupted.
The process differs slightly depending on whether you are using the version (v8.0 Free) or the Paid (Home, Workstation, Server) versions. We will cover both.
Modern computers use UEFI (Unified Extensible Firmware Interface), while older ones use Legacy BIOS. Macrium Reflect usually detects your system architecture automatically. It will select the appropriate Windows PE version (based on your installed OS).