Some are affixed and some are not affixed. Even if they are affixed, they are still trademark protective films and need to be removed to block the view. If it is a desktop computer, there is no need to paste it. For laptops, it depends on your needs. Generally, there is no need to paste it. If you want to paste it, just paste it (it is a bit expensive). Go to a professional store (Computer City) to paste it. Don't go to the street. Fake stuff on the side! If you post fake or cheap stuff, just don’t post it! I suggest you stick it on your tablet!