McAffee anti-virus is as bad as symantec about being intrusive and wanting to take over your computer.

I use Avira anti-virus (free for personal use) which has beat both symantec and mcafee in heads up detection of viruses.
Download anti virus for Linux and Windows, anti spam, recovery software tools

The other ones I will recommend is
Eset Nod 32
Kaspersky
AVG