Have Cancelled & Gotten Confirmation Having Done So But Still Get Pop Ups

I Cancelled McAfee a few weeks Back and gotten Confirmation of having Done So.. But I'm still getting Pop Ups advertising and wanting me to Sign back Up.. That was the main reason for the Cancellation to begin with , endless Pop Ups from them.. Hence How can I just Block McAfee Period. Please & Thank You..

An issue I've seen with Uninstalling McAfee is there's another function having to do with Web security that doesn't always get uninstalled.

When uninstalling McAfee I advise to use their MCPR removal tool. https://www.mcafee.com/support/s/article/000001616?language=en_US

As @Berton mentioned, McAfee WebAdvisor must also be installed. This app also installs an extension in your browser(s)