You don't need to install this WebAdvisorInstaller.exe file, just add the McAfee WebAdvisor extension, which works perfectly. I discovered this by chance when I removed McAfee, and the extension remained in my browser. When I synchronised my Google, Brave, Edge and Vivaldi accounts, the McAfee WebAdvisor extension synchronised in my browsers and remained active without McAfee being installed. The McAfee WebAdvisor extension is not publicly available, it is not listed, so you need to have its URL to add it to your browser. Now I'll let
@Trident give his opinion, because he knows more about McAfee and the McAfee extension. PS: I still have McAfee installed and I am using it normally.