The reason you are seeing
You Are Using An Older Version Of Chrome advertisements is because of an ad-supported application infection. The main purpose of these false adverts is to deceive users into dialing alleged tech-support who would first ask for remote access to your computer, and then install overpriced, possibly useless software. If an advertising-supported application is behind these adverts, they will be pretty invasive, pop up over and over again, no matter how many times you close them. An adware is often attached to free software, and if you do not deselect it, it will install alongside the software. In case you are worried, the ads won't harm your system so as long as you do not call the scammers, no damage will be done. If you did call them, you would be put through to skilled scammers who would pretend to fix your machine, and then request a lot of money. Permitting some dubious tech-support remote access to your system might turn out badly, so be careful. You can be calm that this infection You don't need to be alarmed about the infection the ad is cautioning you about because it isn't real, and that your computer is safe. If you want to prevent the irritating pop-ups, just erase You Are Using An Older Version Of Chrome.
Read more...