The card has special file system, it is not possible to simply copy its content under Windows.


Please download the freeware: win32diskimager. (http://sourceforge.net/projects/win32diskimager/ )


Insert the original (working) card into the PC browse the folder where the image should be written – press read – than insert the NEW card and browse the image – and press write.  


Further information:

https://thepihut.com/blogs/raspberry-pi-tutorials/17789160-backing-up-and-restoring-your-raspberry-pis-sd-card