How to replace the system default software in Win10 official version?

Two days ago, Microsoft released Windows 10, a desktop system with a lot of new features and optimizations. In addition to a number of improvements, Microsoft has also changed the way it replaces system defaults on Win10. If you are plagued by the problem, take a look at the animation below to learn about it:


If the animation is not very clear, or are not familiar with English, you can also refer to the following steps
1. Open the settings from the start button
2. Open the system menu
3. On the sidebar you will see the default application button, open it
4. You will see many application type options, click on the icon You can