S7 connected to PC/Windows, but nothing shows up on PC

[AC Question]

I want to move a photo from my PC to the Samsung S7 phone. I have it connected via USB and also get a connection, but absolutely nothing is showing up on my PC screen from the phone. It does show my phone's name, but no folders, nothing...just empty. What can I do?

 

[BattleSwine]

Inside Marshmallow: USB connection options | Android Central