Need to removed McAfee

I install Norton. (Mac OS X 10.10.x ) Got an error McAfee need to removed . So then I removed the McAfee (dragged and dropped to trash)  .I restart Mac . When reinstalling back Norton. Got same issue .

Is there any possible folder or components of McAfee that was still on the Mac that need  to be removed ? 

By the way I also already run Disk Utility. Got same error . Now I attempting to reinstall McAfee and uninstall using uninstaller. Before I do that, do you have any suggestion ?