“I didn’t find a way to create bootable storage meaning that your backup might be useless if your PC crashed or doesn’t have an operating system at the time of the restoration.”
If this is correct, if you have to install Windows before you can restore an image, the software is pretty much useless. Who releases backup software without the ability to create bootable media for full ‘bare metal’ restores?
My backup/imaging/cloning software of choice is the free version of Macrium Reflect.