McAfee Anti Virus error setup

Hello everyone,
I wanted to have good antivirus software that will keep my computer safe from viruses. On a few forums I read about McAfee anti virus. I decided to try it. I am using Windows vista and everything was fine. But the next time I wanted to run antivirus I got error message. Had anyone experience like this?
My Best
Brycen

Setup Error
Failed to load resources from resource file
Please check your Setup
