Now, you must be thinking how it can occur without your information. These spyware and adware software are designed in such a way that without your prior knowledge or permission, they are installed and start working automatically. While installing some free software or music files or something like, this malicious software gets installed in your window registry. The researches show that 8 out of ten computers are infected with these software and the only solution available to get rid from them is to run
spyware cleaners.