It tries to do it by finding and destroying all spyware and cookies in your PC. In addition it will warn us if a spyware is trying to access our computer.
It includes several features, but one of them is really useful if your PC is used by more than one person. You can create restricted areas by adding passwords to certain folders in your computer, so only you and know the keyword can enter.
It also includes virus scanner, so you will be 100% protected.