Hi,
Thanks for the images.
If you were able to transfer from the SD Card to the PC then there is nothing wrong with the functionality of the PC.
Could the missing images be held on internal memory? [ not the SD card ]
If so take a look below to transfer from Internal Memory to SD Card. [ I can't verify this - sorry ]
From a Home screen, touch and swipe up or down to display all apps.
These instructions apply to Standard mode and the default Home screen layout.
Tap Samsung folder then tap My Files .
Tap Internal storage.
Select the directory/folder that contains the file(s). (e.g., DCIM, Pictures, Music, etc.)
Tap the Menu icon https://scache.vzw.com/kb/images/common/menu_icon.gif (upper-right).
Tap Edit.
Select (check) the desired file(s).
To select all files, tap All (upper-left).
Tap Move (lower-left).
Tap the Folder icon (upper-left) to return to the 'My Files' page.
Tap SD card.
Select the directory/folder that you wish to move the file(s) to. (e.g., DCIM, Pictures, Music, etc.)
Tap Move here.
You can then transfer from the SD Card as you did in the last post.
Obviously this is a work-around and not a solution.