Lauxanna

Help...the McAfee Antivirus software on my comp keeps blocking Runescape. I went into my C: drive and deleted the McAfee files that I could find and was able to log into Runescape by not typing the www and instead typing http://runescape.com/ but now that's not even letting me on to Runescape. How can I completely delete any McAfee files from my comp so I can get on to Runescape. This is so frustrating...any suggestions would be greatly appreciated!! Lauxanna