Because of the need, rumors arise. But perhaps due to excessive need, some rumors become more and more true, spreading far and wide. With the development of the internet, all kinds of information are available: direct translations, self-edited modifications, and even self-invented creations... Recently, on the internet and even in some media outlets, many rumors have already led quite a number of computer novices into deep misconceptions, and some have even gone astray... Nowadays, "rumors" related to computer use generally originate from some system optimization techniques or methods claiming to enhance system performance for free. However, after using them for a while, one may find that some of these techniques seem useful but show little effect when applied, and some may even cause your system to "die."