If you specifically need the older 64-bit Free Edition installer (v8.0 or older) which is no longer on the official site, these reputable mirrors often host the files: MajorGeeks Macrium Reflect Free Uptodown Download Mirror TechSpot Downloads
: You can create disk images or perform clones on any 64-bit Windows system simply by booting from the USB or running the portable app from the drive. macrium reflect portable 64 bit link
: If you have a Technician's License , check the box for "Create Portable Technician's Rescue Media" . This creates a USB that runs the full Reflect app on any PC without installation. If you specifically need the older 64-bit Free