I keeping seeing advertisements that tell me I need to delete computer history. I don’t really understand why I need to do this. Is deleting history actually important for my computer to run? If it is important is there a good way to do the deleting. I thought that history made it easier for your computer to work. A lot of these ads are claiming that deleting things will speed my computer up and improve performance. How can this be true if the computer uses the history to operate. I’m really confused by all of this.