The forum you posted to is for the discussion of Microsoft Security Essentials beta. I suggest contacting McAfee support -
http://service.mcafee.com/default.aspx or you can try rmoval with an online scanner such as Eset Online Scanner -
http://www.eset.com/onlinescan/
Jim - MVP Windows Live - Forum Moderator - Live One Care - Live Mesh - Microsoft Security Essentials