Read on another thread where an Admin told someone this problem indicated malware on their computer and provided a link to
www.malwarebytes.org/mbam.php which I long ago installed and use.
So I ran a scan which found three items, two of which were called Disabled.Security Center. Cleared those and thought I was in the clear.
As I logged on here to share the good news...I got the notice again that my computer is not protected. No dice on the malware concept.
Clearly a McAfee issue. On my way to shop for a better service.