Repairing or reinstalling an app will replace corrupted files and remove temporary files, restoring the app back to its original state. This is especially usefull if you don't have the original setup file.
Make sure that your Windows app is closed and that you have administrative access to your computer. If multiple users are logged in to your computer, make sure the app is closed for all of them.
1. Open your start menu and click "Settings".
2. Select "Apps" and then "Apps & features".
2. In the list of apps, select the application that you want to repair and then click "Modify".
When prompted "Do you want to allow this app to make changes to your device?", click "Yes".
3. Make sure you're connected to internet and click "Repair" to repair your Windows 10 application.