In Windows 10, apps downloaded from the Windows Store are installed in a hidden folder at the root of your system drive. By default, access to this folder is denied, but you can view the content of the app folder with a simple tweak to your settings.
How To Find the Windows Apps Folder
Click on Start > File Explorer > This PC > C: > Program Files. Click on the View menu > Show/Hide and tick the Hidden items checkbox:
Search for a folder named WindowsApps. But don't open the folder or else Windows will display a warning message that reads "You don't currently have permission to access this folder":
Even if you are an administrator, you'll need to take ownership of the folder before you can view its content.
Take Ownership of the Windows Apps Folder
Right-click on the WindowsApps folder > Properties > Security tab and then click on Advanced:
Click on the Change button displayed next to Owner:
Type your Windows ID into the Enter the object name to select field and then click on Check Names:
Once your ID has been verified, click on OK > Apply to take ownership of the folder:
Close the Properties dialog window and try to open the folder again.