Keyboard is disabled at XP logon

November 16, 2012 at 06:10:41
Specs: Windows XP SP3, Standard for the model

All was well yesterday before shutting down the laptop for the night. This morning the keyboard is disabled at the logon screen. The keyboard works OK with the BIOS so it is not a hardware problem. I have tried booting into Safe Mode With Command Mode but again the keyboard is disabled at the logon and the computer does not detect the Ctrl+Alt+Del input needed to activate the Command screen. .

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November 16, 2012 at 13:36:29

Have you added or removed any software yesterday?
Might be a setting in the BIOS (try enabling USB legacy support in the BIOS Settings)

Please reply and let us know if our help worked. Your feedback helps others. Maybe you?

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November 16, 2012 at 13:45:23

1: Make sure the Num Lock light is not on.

2: Try pressing F8 during boot, select Debugging Mode, press > Enter.

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November 17, 2012 at 06:59:00

Mr Goodguy: Yes. There was an update which installed as the computer was shut down, in the way that Windows updates do. This is almost certainly the cause of the problem and I am now preparing to do a Repair of the Windows installation (not a clean install , but this may have to be the last resort.) Many thanks for pointing me in the right direction.

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November 17, 2012 at 07:11:38

To Johnw: The Numlock light was not on. The keyboard was completely disabled, I tested this by seeing if the Caps lock light toggled on and off. I tried Debugging Mode, but was still unable to logon, I did however open the Guest Account to use the Dell Support Assistant which reported that a Windows update protecting against the Sasser worm was missing. I downloaded the Norton Bootable Removal Tool from the website and put it on a USB key. Attempting to use this it reported "NTLDR Missing". I understand from Symantec that this indicated the Windows files are corrupt.

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November 17, 2012 at 11:06:23

You might find this of interest:

Always pop back and let us know the outcome - thanks

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