In the menu of the backup/systemcopy in W10, there is a function to burn a CD/DVD which automaticly puts a small W10 on it, so you can Boot with this. Then this W10 version opens and you can select to make a systemrecovery and point it to the place on a drive where you made the Systemcopy.
SO always first make this Disc, then perform a systemcopy.
WHen you want to test if this works and you have an empty SSD/HDD lying around, then put this one briefly in your PC and perform the recovery.
It wil put your first Cdrive on the new one (offcourse that drive has to have minimal the same storingcapacity).