System freezes at the logon screen after problems...

[Hyde Park]

I was able to reboot my computer, but once it reached the logon screen, the
system would not take any key at all. That is, even if I typed my password
in the password box, the system remained blank and froze. The
Ctrl-Alt-Delete was no longer working. I restarted the computer a few times
with the same result.

 

[Victor Huang]

Hi, Hyde Park
I think maybe is your system files has problem, you can try to logon in save
mode. If you can logon in save mode, repare the system files.
Victor

 

[Steven L Umbach]

Try booting into Safe Mode to see if that works or not. Maybe your keyboard
is defective or not plugged in all the way in the back of the
mputer. --- Steve

 

[Hyde Park]

Thanks a lot, guys. But I don't think it is the hardware issue since I used
another fresh HD to boot and it worked just fine. I am afraid something must
have been wrong with the system.

What are the essential files for keyboard and navigation (mouse or pad)?

 

[Steven L Umbach]

Well it seems you have rule out a problem with the keyboard. If you can not
boot into Safe Mode or last known good configuration you will probably need
to try an upgrade/repair install of the problem, operating system. I have
seen times where logon was finally allowed after a long period of time like
up to thirty minutes which at least gives you a change to see what is
reported in the system and application logs and maybe attempt other
epairs. --- Steve

http://support.microsoft.com/default.aspx?scid=kb;en-us;315341 --- XP
repair installation.