“Por favor instale o Media Player HD” ads appears in your browser, the ads might happen in Internet Explorer, Google Chrome or Mozilla Firefox. This “Por favor instale o Media Player HD” ads are caused by malicious software. This malicious software use popups to promote ads thru this website. The ad with “Por favor instale o Media Player HD” is simply used to promote services or malicious software on your computer. Most of the ads are for revenue from adware promoting services.
The distributors also often use the Google Search engine to promote inline advertisements on the right side of the Google Search engine or at the end of the page. They inject advertisement to make money using pay per click advertisements.
It is advised to always read the Terms and Agreements before installing software on your computer. Do never click too fast thru the installation process [Next] button of software as you will agree to software you might not want to install. If the installer offers a Advanced or Custom option button, click it to find out if there is any other malicious software offered and installed during the installation process.