On Windows 10, you can use the Settings app to quickly reset and repair an app. You may want to use this option when you’re dealing with a problem with an app that came pre-installed with the OS (such as Mail and Microsoft Edge), as well as to fix problems with apps that you acquired from the Microsoft Store.
How to reset apps on Windows 10 using Settings
Use these steps to reset an app to fix problems on Windows 10:
Click on System.
Click on Apps & features.
Select the app that you want to repair.
Click the Advanced options option.
Click the Reset button.
Click the Reset button again.
In addition to resetting an app, note that from the Advanced options, you can also control app add-ons and other downloadable content for that specific app.
The new reset feature in the Settings app is a useful option, which can come in handy in many situations, including those time when the Mail app stops syncing, or you have problems with other built-in apps like People, Camera, Alarms, Calculator, and other apps.