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#21
No one can boot from a Macrium image file. It's not just you.
But they are not "useless".
Do you in fact have an image file with an MRIMG extension saved somewhere on some hard drive?
If that MRIMG file is on a USB stick, can you boot your PC from that stick, as if your SSD did not even exist?
It is possible there is something wrong with your particular Macrium image file.
But that is not the most likely possibility.
It is much more likely that you do not know the proper procedure and that is why I asked you about the details of what you intended to do. It appears you don't know the details.
To be useful, the Macrium image file must be formally "restored" to your prospective new SSD. That's a multi-step process.
Have you investigated that procedure at all? Looked at tutorials? Read the help file?
I can assure you that other imaging programs work in much the same way. You have to restore. Macrium is simpler than most of them.