You can get a Mcafee uninstaller for Mcafee AV directly FROM Mcafee at HERE. (NOTE: This link goes directly to the download. If I am breaking a rule by doing it this way, will a Mod please fix it & let me know. I didn't have another link except the one I gave here.)
I heartily recommend using an uninstaller app that monitors DURING THE INSTALLATION of any new software. Soft Organizer does this, as does Total Uninstall. These are the only 2 I am familiar with but I am sure there are others. Monitored installation is especially important when installing security apps -- some of them are notoriously difficult to uninstall unless the installation was monitored.
P.S. -- If you are just giving a security app a quick try, I recommend doing it on a virtual machine or else do a pre-install image of your computer.
Edited by bellgamin, 22 July 2018 - 09:52 PM.