If you have uninstalled McAfee Site Advisor as stated above, but
you can still see "McAfee Site Advisor" folder at C:/Program Files,
which means McAfee Site Advisor isn't completely uninstalled.
What happens a lot is that the uninstall simply fails. Also,
McAfee Site Advisor leaves files in your registry, and they need to
be deleted too in order to complete the uninstall.