To do that on Windows 10, head over to the search bar and type Default. Next, go to Default Apps Settings > Photos. You also have to make it your default Photo viewer app. Just a heads up, installing a third-party photo viewer app isn’t going to be enough. So, here goes my list for the best photo viewer for Windows 10. All in all, there are much better alternatives out there that just trump Microsoft Photos. Having said that, it does have few editing tools which work great but it’s seldom preferred anyway. Plus, it can only handle JPEGs and RAW images, but it has no clue what’s a PSD.
You double click an image and it takes its own sweet time to load. The new Windows Photo viewer has its own woes.