a box comes up with avast, mcafe (already comes on the machine) and windows defender,
McAfee must be removed.....and defender turned off

Why Using Multiple Antivirus Programs is a Bad Idea http://blog.kaspersky.com/multiple-antivirus-programs-bad-idea/

General: Uninstalling a third-party antivirus software http://www.avast.com/faq.php?article=AVKB11#artTitle