Keyboard Not Working

I was recently given a laptop that the keyboard did not work. So instead of trying to figure out what was wrong i immeditally thought it was a faulty keyboard. So i changed out the keyboard. As you can probably tell that did not work or i wouldent be posting this questions.

The keyboard works in safe mode.
Once XP loads the keyboard does not work.
I have tried msconfig and disabled just about everything at startup and it still does not work.
I have tried plugging in an external keyboard and that did not work.
i have scanned the computer for viruses, spybots, adware and have removed everything i could find and the keyboard still does not work.

This is not my laptop it is my bosses laptop so information about what happened to it prior to being set on my desk the other day is non existant. I asked him what the last thing that was done to the computer before the keyboard stopped working and i recieved no answer so i guess i am on my own.

Anyone have any suggestions on what i could try?
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Open Device Manager, and uninstall the keyboard and any HIDs (Human Interface Devices).
Restart the computer.
Does that help?
DejayyAuthor Commented:
Nope keyboard still does not work.
Have you tried using System Restore, to restore the computer to an earlier time?

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Hope that was helpful.
Thank you.
This may not be worth much but I had my keyboard also go out on my DV8000. I took EXTREMELY good care of it and it was very random, but one day it just STOPPED WORKING!

Here's what I have found:
1. Remove the battery from the laptop
2. Insert the power cable in it's port on the laptop
3. With the battery out, start up the laptop and see if the keyboard works! For some reason when the battery goes bad, the keyboard won't work. Not entirely sure why.
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