Image Viewer Path Windows 10. You also have to make it your default photo viewer on windows 10. Open the settings panel with this option and here you will see the default option for photo viewer.
Now you need to go to start menu and then type default app settings. Now click on photos and select any photo viewer to make it default photo viewing app. Select the windows photo viewer app and enable the always use this app to open jpg files checkbox.
You may also use process explorer or any other process viewer to see the path name and command line of a running process.
Now click on photos and select any photo viewer to make it default photo viewing app. Read more from techrepublic. Alternatively just type default in the search bar and go to default apps. Select the option and you will see the photo viewer list.