While browsing the Internet, some websites display pop-up advertisements to viewers. These pop-ups are often unwanted and only get in the way of your browsing experience. Most Internet browsers now include an integrated pop-up blocker, so you don't have to see these ads. No pop-up blocker is perfect, though, and some pop-ups still show on your computer. If you have the McAfee Internet Security program, it contains a pop-up blocker. Turn it on for additional protection against ads and pop-ups.
Launch McAfee Internet Security, and then click "Options" at the top of the screen.
Click on "Block Ads." In the window that appears, click "Block ads on this computer" and "Block Pop-Ups on this computer."
Click on "Apply" and "OK." Pop-ups and ads are now disabled when you browse the Internet.