I've been looking for a solution to this problem. I have tried restarting my computer, taking the battery out and restarting it, and I believe I successfully uninstalled the keyboard driver and re-installed it. Some people suggested buying a new [url=http://www.acompatible.com/category/2-keyboard]Laptop Keyboard[/url]-please do NOT suggest this. If I wanted a keyboard separate from my computer, I would have bought a desktop to begin with.
I was almost wondering if it could be a virus of some sorts, although I run regular scans with Norton and I also use Malwarebytes.
Help is greatly appreciated!
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I have an HP Notebook, Windows 7, 64bit.
From the OneCebu archive, last updated February 10, 2014. Some details may have changed.