Allow Standard User run application as admin

we have a shortcut that is calling a .exe file that requires admin rights by the UAC. I would like to be able to run the application without any admin rights or give the standard user admin rights only to this .exe. What we have done and failed.

1. Application properties >> security >> Advanced >> Permissions >> Full Control
   to local group A (which includes the user) and user by them self.

   2. Gave ownership of folder to local Group A.

   3. I looked in Regedit and I see the user, and they have full control for that application.

   4. have checked run as admin and unchecked too.We do not want to use /savecred because of security risk. What other steps can we take to find a solution.

Window 10 and on a domain