Check in your program list if you have McAfee Security Scan Plus installed. If so uninstall it. It is offered as a sales guide with many other varieties of software but especially Adobe products and you may have overlooked that option when updating or installing something.
Faling that we need more information. Is your software bought directly from McAfee or provided by a 3rd party?
No sign of McAfee Security Scan Plus.
The software was originally installed on the computer by Dell.
I know this sounds like a lame excuse but we have found that Dell and other 3rd party suppliers use the software for their own purposes in the form of popups, however, they shouldn't be occurring very frequently. Can you post a screenshot of the next one you see please?