From Coolmuster Studio:
As one-stop Android managing software, Coolmuster Android Assistant is fully capable of dealing with Android media, contacts, SMS, apps in one place on your PC. It features all the functions one may require for the management on Android devices like: Hammer at backup and restore overall Android phone's data on PC with 1 click & retain 100% quality. Breezily push music, videos, photos from PC to your phone. Add, delete, unduplicate and edit contacts on PC. Send & reply text messages directly on your Computer.
I connected my Samsung Galaxy S7 to computer via USB Cable in MTP mode and wanted to transfer my photos to computer. But not all my photos can be checked. I wanted to know why, so I searched a lot online and now understand I need help from this Android Assistant tool. It does help me a lot. Now, all photos are transferred to computer.