The Fn key is usually located at the bottom of the keyboard, among the keys found at the left of the keyboard, which is used in combination with anothet keys in order to enable or to disable some features. You may want to turn this key off, when you don’t need it, so that when youl will press some keys by mistake to not have a special effect, like when you press the Fn key, but with the desire of producing such effect.
According to an article I read on eHow, this can be done in three steps. First of all, you have to locate your Fn key on your keyboard and then to select the Num Lock key. You have to press them both simultaneously to disable the functionalities of the Fn key. These two form in fact the first two steps. The third step which is presented is in fact a variant for those who do not manage to turn off the Fn key using the two steps aforementioned.
You have to press the Fn key, the Num Lock key and the Shift key at the same time. This is done usually by users who have older computers, because the newest models allow them to cancel the Fn key by pressing only on it and on Num Lock at the same time.
Other keys that may be used in combinations are Ctrl and Alt keys. Of course, the F keys that are present on the top of the keyboard are by default keys that need to be used in combinations with others. When you will buy a computer, no one will tell you how to use the keys. It is already believed that you know how to use a keyboard and its commands. To find out more about the commands that you can use on your computer, you can write in your search engine “keyboard commands”. Most likely, you will be directed first towards Microsoft, since almost all of the operating systems on the market come from Microsoft. There you will see the available commands and how you can use them properly. Because Microsoft offers support in many languages, you can read the articles in your own language, if you are not a native English speaker, thus you’ll be able to understand their effects more rapidly.