Built-In Adminstrator

[Tyecom]

I'm logged in as a localadmin. However, I'm getting all kinds of security errors when loading programs. Mostly errors relating to writing to or accessing the event log. Can explain to me what is this "built-in admin" account. And do I need to enable it to have full admin rights. Thanks in advance.

 

[PoPPeR]

provide some example of the exact error message. screenshots are always helpful