The only thing that leaped out was no drive letter being assigned.
Searching in Google for "windows 10 not assigning drive letter to usb" brought me to a similar issue on Windows 7
Windows 7 Does not assign a Drive Letter
A common solution from that thread was
Quote:
open command prompt
type in diskpart
automount enable
|
If you just type
automount by itself, it will show the current status of the automount setting.