Forgive me for asking, but when you plugged in the NOOK GlowLight 4 Plus to your Windows 10 computer, did you click
"USB Mode" on the NOOK device? This should make a 5 GB drive show up on your computer, and then become visible to Adobe Digital Editions.
See here:
https://help.barnesandnoble.com/hc/e...-Your-Computer
Ignore the comments about "micro-USB"--GlowLight 4 Plus uses "USB-C" cables.