Microsoft Edge can't be opened using the built-in administrator

I only have one user account on my Windows 10x64 Pro machine and it has administrator privileges with UAC turned off and has been that way ever since it was installed. Now whenever I try to open Microsoft Edge I get a pop-up that says:
"Microsoft Edge can't be opened using the built-in administrator account. Login with a different account and try again." I haven't been able to get Edge to open since it started.

Also when I right click on my desk drop and try to change the display settings I get a pop-up that says:
"Settings can't be opened using the built-in administrator account. Sign in with a different account and try again." But when I click okay the options for changing display settings open anyway.

Why not heed the warning ?
Use the built-in admin to create a user account with admin privileges > logon to the new admin account and stop using the Built-in Admin Account.

Why not heed the warning ?
Use the built-in admin to create a user account with admin privileges > logon to the new admin account and stop using the Built-in Admin Account.

I'm not using the built-in administrator account! I'm using a regular user account that I created that has administrator privileges, not the same thing! I never said that I was using the built-in administrator account!I've also been using this exact same set up since I 1st installed Windows 10 and have never had this problem until 2 days ago!

until 2 days ago!

Try doing a system restore. Pick 3 or 4 days ago as your restore point.

System Restore Windows 10

While I could certainly do that I would really like to figure what is causing this problem in case it happens again. I can either do a system restore or if that doesn't work I can even use a complete system backup which I do on a regular basis. But 1st I like to figure out what's causing this problem.

Start with virus scanning ?
You have Malwarebytes ? It's one of the best, if not the best, in the business.
I have a free edition version and I use it to scan once a week.

Been there done that. I use Malwarebytes regularly including this afternoon and use Norton Security all the time. Quite sure it's not a virus problem, I'm guessing it's something to do with a MS update of some kind which is why I would rather fix it instead of reverting.

I have no more suggestions.
Sorry.

@MSRadell:

Does the name on the login screen, that you sign in with, coincide with the name of your user folder?

Start with virus scanning ?
You have Malwarebytes ? It's one of the best, if not the best, in the business.
I have a free edition version and I use it to scan once a week.

Does Malwarebytes Anti-Malware replace antivirus software? Malwarebytes Anti-Malware is not meant to be a replacement for antivirus software. Malwarebytes Anti-Malware is a complementary but essential program which detects and removes zero-day malware and "Malware in the Wild".
This includes malicious programs and files, such as virus droppers, worms, trojans, rootkits, dialers, spyware, and rogue applications that many antivirus programs do not detect or cannot fully remove. That being said, there are many infections that Malwarebytes Anti-Malware does not detect or remove which any antivirus software will, such as file infectors.
It is important to note that Malwarebytes Anti-Malware works well and should run alongside antivirus software without conflicts. In some rare instances, exclusions may need to be set for your specific antivirus product to achieve the best possible system performance.