To me, it seems like you placed your photographs in the Windows directory, which is where the display properties gets its main image list from.
Try this method first:
[li]Go into My Computer and into your operating system drive, which is most likely ‘C:’.[/li][li]Right-click on the “Windows” folder and click ‘Search…’[/li][li]Type ‘.jpg’ in the “All or part of the file name:” field and click ‘Search’.[/li][li]Go into the View menu and select “Arrange Icons By” and select “Modified”.[/li][li]If your images are in the Windows directory/sub-folder, they’ll be grouped together towards the bottom.[/li][/ol]
If the above method didn’t work, try this:
[li]Go into your display properties and take note of a filename of one of your own photos in here.[/li][li]Go into Start -> Search and click “Pictures, music, or video”[/li][li]Tick “Pictures and Photos” and type the filename you took note of.[/li][li]Click “Use advanced search options” and select “Local Hard Drives” from the drop-down.[/li][li]Click ‘Search’ and give it a few minutes to complete. [/li][li]Right-click on the search result and click properties. [/li][li]Take note of the location, go into “My Computer” and browse your way to this path to get them.[/li][/ol]