Windows Photo Viewer is a simple image viewing application included in some versions of the Microsoft Windows operating system. It allows users to open and view various image formats, such as JPEG, PNG, and GIF. The interface is user-friendly, featuring basic navigation tools like zoom, rotate, and slideshow options. This program is often favored for its speed and ease of use compared to more complex photo editing software. While it lacks advanced editing features, it provides a straightforward way to view and manage images stored on a computer or external device.