Look for McAfee removal tool and use it....

Here's a search:
http://www.google.com/search?hl=en&q=mcafee+removal+tool&aq=6&oq=McAfee

And the official McAfee site and removal tool here:

http://service.mcafee.com/FAQDocument.aspx?id=107083&lc=1033

Peace

Rather than using the link above try the link below which is the latest uninstallation version

https://us.mcafee.com/root/MCPR2.exe

The previous version above mentioned can cause problems at times.

:smileytongue: