I can't find the directory 100ANDRO on my pc
Camera photos should be in DCIM/Camera not in 100ANDRO, but however here is the thing that might help you:
Go to settings>apps and find apps "media storage" and "external storage" and clear cache and data for them, after that reboot your phone and wait up to 10 minutes for android to index all files, then connect phone to PC via USB and see if files are there.