Don't pay any attention to it. It is a virus that will attach itself to your hard drive and maybe your address book. It could make it hard to use google or any other search sites. If you have McAffee and it said it is ok, it should be fine. It is just a way to get you to download their software. It happened to me last year, everytime I tried to use a search engine, it would redirect me to their virus download site. I had to clean my computer and reload a lot of things.