pop-up windows you may encounter in your browser will permanently cause the bunch of problems, however, they surely can be solved by proper anti-malware solution. The reason why pop-ups appear in your screen is because the computer has been deeply contaminated with adware. It is possible that the adware was injected into the system along with some other free software you have been dealing with lately. The goal of pop-up is to redirect your browser to all sorts of other third-party sites of really bad reputation, through which your system may become infected with tons of other absolutely useless and even dangerous applications. Following this guide will help you to get your system duly repaired.