Downloading iPhone photos to a PC


Hi there - I have read your very informative instructions about downloading photos from an iPhone to a PC and have followed the instructions successfully - to a point…my problem is that I started with over 6,000 photos on my iPhone and after copying each folder from the phone very carefully to my PC I am still left with over 4,000 photos on my phone that don’t come up in the DCIM folder. Any idea where these photos are? I thought they may have different file names so used your advice to select “automatic” on my iPhone so that the odd files would be transferred to JPEG files - but still no success. HELP!!!