Could Not Backup Micro SD card on Windows 7 with Win32dskimager

I have brand new Raspberry Pi 3 (B) kit from Adafruit. I googled how to backup the preloaded Noobs/raspian OS of Micro SD card that it came with, but after downloading Windiskimager, i found it disnt recognize the Micro SD card and asked me to reformat it on my Windows 7 machine. I ejected it and decided to reach out for help here. All the google videos ive found suggest this is right approach.
Any ideas what is preventing this from being recognized? I want to backup Micro SD Before I do any projects.

Sorry if its in wrong topic area...

Thanks

Ed

It's not only not in the right area of the forum, it's not even in the right forum.