I've already "brought back" Windows Photo Viewer on my Windows 10 device and set it as default app for all kinds of image files, but when I open the images, they always open with the Windows 10 Photos app. The only way I can open them with the Windows Photo Viewer is to go to "open with" and choose the program, but even though I also set "always use this app" in the prompt, it still opens them with the Windows 10 Photos app the next time I click on them. I've already tried choosing the program as the default app in the default apps page in settings, but it doesn't show up there. Can somebody help me? Thanks in advance.