How to run UWP Apps with UAC turned off?
Solution 1:
Windows 8, 8.1 and Windows 10 versions until 1607 have sandbox that doesn't allow Metro apps to run without UAC except for Settings. Windows 10 version 1703 and later have fixed Windows Store UWP apps that allows it to run without UAC.
The proof of Windows 10 1703 and later stating that running UWP apps while disabled UAC are seen in this Winaero link:
https://winaero.com/run-apps-uac-disabled-windows-10/
However if your in Windows 10 right now, you can have the free upgrade to newer versions.
Solution 2:
You cannot run any apps that are now known as universal apps with UAC turned off.
Universal apps run in sandbox environment now which is fully UAC reliant. Even Windows calculator runs this way so with UAC off you cannot run these apps no way around it.
This has been the case since Windows 8.