Keyboard failure

My keyboard was working fine and all of a sudden it quit.
i cannot get it to type, it powers up ok when I press cap lock it lights up.
I tried a different keyboard also but its the same,... nothing.
I shut the computer down and I got a message saying keyboard failure.
but I cannot select anything as the up and down arrows dont work either nothing functions.
I finally booted up in safe mode and ran a anti virus in case i had a trojan but it found nothing.
So I went into the control panel and selected the keyboard I went to propereties when I click on troubleshoot or properties nothing happens.
Any ideas anyone.

 

"I finally booted up in safe mode and ran a anti virus"
If the keyboard works ok in safe mode then you dont have a hardware problem with the keyboard. I think XP has some restore points you can go back to. You might try removing the keyboard from the device manager in safe mode and see if the system can find it again when it boots back up.

 

The keyboard would not type ??? but I could cut and paste with the mouse so I pasted msconfig into run and got to start up and selected safe mode.
And ran the anti virus like I said .. but to no avail also there is no keyboard in the device manager.

 

Is it a USB or PS2 conection.

 

PS2.
but I did try a different keyboard and it would not work either, So now I think maybe it is a motherboard problem.

 

It could be the PS2 socket that fried.
Try using a USB keyboard and see if it works.