This is one of the worst AVs to have installed on your system, anyway, and it’s free from several major cable and DSL providers, along with many universities.
Much better choices: Avira (the free one is fine), NOD32, and G.DATA, but most won’t have heard of these. Symantec is the decent fallback now, but for years it was worse than McAfee.
For good comparisons, look here:
Avast, AVG and Comodo are all good.
Much better choices: Avira ...
When I run comprehensive anti-spyware/anti-virus testing every 3 months or so, I use Adaware, AVG, Avira, Microsoft Malicious Software Removal Tool, and SpyBot.
For day-to-day, I run Avira on the machine, along with Zone Alarm. Used to use AVG day-to-day, but Version 9 seems to have bogged down my ‘puter [still use it every 3 months though].