This folder is empty after update

[UWILCPO]

Ok, I had my Galaxy Note 4 updated recently.

As the result, now every time I connect to any PC, I have "this folder is empty" message.

BEFORE update, same PCs saw all the folders on my phone just fine. Now I can not transfer files, pics, etc. I take pics of my patients and store them in dedicated folders and as I do mobile service, I MUST have transfer enabled.

What do we do?

Thank you

Phone is showing in File explorer as Samsung phone. Same goes for W7 or for W10, don't matter. Like I said, all worked fine before update.

[tikibar1]

With the Marshmallow update, the default USB mode is charge only.  Pull down the notification shade, tap where it says USB Charging, and change it to File Transfer.