The first thing you should do is try another keyboard. In this article we will explain why this problem occurs and give remedies to it. The users that we received this error from were mostly Toshiba, and Lenovo laptop users but Dell, Acer and Hp users also made appearances. Others state that this symptoms are spread to the 1 2 3 & 4 keys. While for some users, the spacebar does not work completely, for others the spacebar will only work when the Fn key is held down. This is why I have been receiving hilarious messages like, “Kevin.My.Spacebar.Is.Not.Working” or “My_Spacebar_is_not_working” and even “Myspacebarisnotworking” among other variations that indicate the users are really suffering with this problem. The spacebar is also used as a gaming key to handle the most common actions. Whenever a user is asked to press any key in order to continue a process, they instinctively press the spacebar or the enter key, unless they are those kind of people that slap their keyboard and let fate decide. It is estimated the spacebar is pressed 5 times every 10 seconds when typing.

There is nothing much you will do without it in fact nothing at all.

Keyboard spacebar not working properly