Re: Need PC Security....
AVG has a free anti virus. So does Avast I think. Comodo has a good free firewall. Removing McAfee can be a pain however so be certain you remove it completely. Do the uninstall, then reboot and search for any files/folders that McAfee had and delete them. Also back up your registry and delete the entries from there as well. McAfee doesn't like other AV programs and often prevents them from installing and/or working correctly.
Change the world. Of one person. Today.
If your equation requires either a complex combination of variables to get the desired result OR you can't seem to get the result regardless of the variables....it ain't your variables, it's your constant.