NOT legit. This was happening to me on Chrome 2 weeks ago. That same advertisement. Didn't go away until I disabled live player which was a real bitch to do too. Thanks to that gaffer that helped me
That's totally legit joelseph. I think you might have scored and found one of the links that comes with some really rad bonus software and a free OS changer. Nice
For me, it's never seemed stable, it locks up browsers, has security holes, constantly asking for updates on desktop. I hate it, I now refuse to install it unless I get the hankering for MineCraft, which I then delete immediately after.