Microsoft announced today that it's releasing a new app called Windows App as an app for Windows that allows users to run Windows and also Windows apps (it's also coming to macOS, iOS, web ...
It's the simplest tool for customizing Windows that I've come across. The application, which you can download for free, gives you a sort of app store for Windows mods. You can browse the mods ...
In Windows, you have options when it comes to viewing photos and videos, but you probably just use the default photo-viewing app Microsoft Photos, which comes pre-installed with Windows.