After excepting the Android Marshmellow 6.01 update, I cannot transfer files to my Windows 10 laptop or my Windows 7 desktop. I can charge the phone through the USB. I can also see the phone name in the PC "My Computer" list, but when I click on it, it says that there is no data in it. I can, however, see that there are files on my phone by using the "My Files" app on the phone.
I do not know what the procedure is to try to connect the phone as a media device. When I plug the USB in, between the phone and the PC, I do not get the list of choices to select from.
I do have the USB Debugging checked, in the Developer options, as suggested by my phone company, but this did not fix it. Do you think that I need to install a new driver on my PC? If so, which driver should I look for?