You can restore the viewer by creating and "merging" a registry script. Follow these steps: 1. Create the Registry Script

Windows Photo Viewer was a staple of Windows 7 and 8, beloved for its simplicity and speed. While Microsoft replaced it with the modern Photos app in Windows 10 and 11, the classic viewer is actually still present in the system—it's just hidden from the user interface.

It typically opens images almost instantly without splash screens or long loading times.