Frequently, users of the web can expose themselves to inappropriate imagery while websurfing. And there is not much we can do to prevent it, aside from installing filtering tools or blocking the internet. If this happens to the user, seeing these things can have negative effects on the computer user and in doing, may store unwanted files that somebody looking for them could locate. Modern analysis tools can now detect the presence of unwanted porn files hiding on the system. Probably the best known software in the 'porn remover' category is Hyperdyne's Snitch eraser software, and from most comments on the internet, it seems to be the pick of the bunch.