one letter on my keypa is not working

[Barbara_728]

only one letter on my keypa isn't working. I have taken the plate off an spraye it but it's not working at all. i'm sure by now you can figure out which key it is

 

[webworkings]

Try this...

1. Uninstall the keyboard driver.
2. Reboot the computer (without reinstalling the driver).
3. When it restarts, it should reinstall the driver on its own.

If this doesn't work, you may wish to try connecting an external keyboard and see if it works fine. If it does, then it could be the keys themselves that are the issue.

You may also want to try updating the Synaptics Driver if the above doesn't help.