The downside of having a popular OS like Windows is that people make virusses and spyware for it. And because you generally don’t know if you’ve downloaded some spyware on your computer, you’ll need software to detect it, and to remove it. One of the best ways to do this is using “Hijack This”, but it is quite hard to use, so you probably want something more user friendly. The problem of the easier software is that most companies only offer some sort of a demo version for free, so you’ll need different programs to find all spyware. This is exactly what Hitman Pro offers.