If you see Ads by Media Player permanently popping up in your browser, this means that your PC is infected with a virus called adware. There will be very many of these Ads by Media Player to come up while you surf the web. In particular, the ads may appear when visiting the commercial websites, such as Amazon, Walmart, Ebay, Bestbuy and many others. Many users today would like to get rid of these ads, but they don’t know how to do it simply but effectively.