To determine if you need a picture recovery software application to recover your deleted photos, look inside the Trash folder on macOS or the Recycle Bin on Windows.
To recover deleted photos from the Trash folder on macOS:
Open Trash by clicking on the icon located on the right side or bottom of the Dock.
Find the photos you want to recover and select them.
Click on any of the selected photos, hold the click, and drag your mouse to another folder or your desktop.
To recovery deleted photos from the Recycle Bin on Windows:
Open the Recycle Bin by clicking on its desktop icon.
Find the photos you want to recover and select them.
Right-click on any highlighted file and select the Restore option.