Can't load SimCity

I installed everything on a different clean windows 10 machine. I installed logged in as an "administrator".  I am able to run the game without issue when logged in as an "administrator".  If I log out of Windows 10 and log in as a "regular user" on the same machine, the error occurs and game does not launch despite answering the question to elevate to "administrator "OK".  Then I went back to my original Windows 10 machine that I've played Sim City 2015 (Sim City 5) for 10 years, logged in as an "administrator", and I was able to successfully launch the game.  But not with the User Login I have been using for 10 years now!!!  I suspect a recent Windows 10 security fix may have borked the game for us.  What privilege is now required that didn't used to be to run this game??  What API call  from the launcher now requires administrator-level privileges?  What privilege can I assign to my "normal user" login to allow this to run now?  I don't wish to log in as an administrator every time I want to play this game, plus all my cities and regions exist under my "normal user" login, and do not exist when I log in as "administrator".  I do not want to change my "normal user" login to be an "administrator".  It is too dangerous to brows the web and such due to drive-by elevation-of-privilege hijacks and the like.