This is certainly even more important when it comes to security software.
Security software ( AV ) must not be removed via REVO, YourUninstaller, Geek Uninstaller or simular to them ... There's a reason for that. For other programs, I see no reason why does not use.
So users are best advised ...
... is to watch what they clicking and where click repeatedly. Removing adware can also be performed manually, avast's Browser Cleanup is a tool that serves for that purpose, but of course, if they need additional help for full-removal, we have the right way to do this. 8)