Some how or other I ended up with the default Junk mail folder and an added Junk folder. It appears here and on my ipad & iPhone in outlook. You can't right click and delete the folder. each time I delete the email notifying me of the duplicate boxes, I receive another. This probably is not a windows 10 issue, but I give up. I've tried everything. Uninstall/install app. You name it I've done it. HELP!