Macrium Reflect Full Portable !!top!!

This is the closest you will get. Using an installed copy of Macrium Reflect, you can create a bootable WinPE or Linux-based rescue environment on a USB drive. When you boot from that USB, you run a version of Macrium Reflect that is fully functional for backup, restore, and cloning—

Yes—even after the trial expires on the host PC, the rescue USB you created remains fully functional. That USB is your portable tool. macrium reflect full portable

Use the official bootable rescue media. It is superior to any fake "portable" EXE because it runs outside of Windows—bypassing file locks, malware, and permission issues. This is the closest you will get