Fake anti-viruses are the most important and dangerous infections from which we need to be cautious about. They keep pestering us with pop-ups showing many risks and show us to purchase a full version of it when we click on clean infections. This includes spy wares that take access of most of the system processes and disable most of the trouble shooting tool in windows. Since they take spy on computers after getting installed they are called Spy wares. These fake anti-viruses are created by hackers trying to steal your money using the tactics: fake alerts, wrong scan results and Interfaces that look similar to popular anti-virus software. They will make PC run slow. This can infect operating systems XP, Vista and win-7