Since the arrival of digital cameras, everyone has thousands of stored photographs on their computer and most likely dozens of them are repeated taking up space on your hard drive.
To detect these repeated and duplicate photographs there is a program like Duplicate Photo Finder 1.0 which thoroughly analyzes your hard disk by comparing all the photographs that it finds among themselves, said comparison does not do it by name (since you probably have different names) but by comparing the appearance of the two photographs until determining if it is the same, even detects those that have been rotated or resized.
You can free download Duplicate Photo Finder 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.