Ursprünglicher Beitrag von: Alvin Thamrin ,
For clarification, do you mean one of the keys or the whole keyboard fails? What you could do for now is to check for any possible stuff that may be lodged under your keyboard. Try giving your laptop a good shake (with a hard grip, you don't want to drop your laptop by accident). Your other option is to use a keyboard vacuum, or a can of compressed air to blow dirt off under your keyboards. If that doesn't work, try rebooting the laptop (it could work). If that still doesn't work, then see if you have driver problems. Check the Device Manager on your laptop. If the keyboard line item has a yellow exclamation point next to it or if the keyboard icon doesn't show up at all, then you should try to get to your laptop maker's download page, then download and install the latest drivers for the keyboard. You may have to hook up a USB keyboard (see below) to navigate text entry fields, but after you find the correct file it should be a quick download and fix. If all of these fail to solve your problem, then you may have a defective keyboard, or a loose connection between your keyboard and the laptop's motherboard. Try to seek help from a professional if you are not confident in prying your laptop open to check the connection. In case of a defective keyboard, you would need to contact somebody (try Fujitsu first) for a replacement.