XP Pro bootup error

[Guest]

I have a latpop runnin XP Pro SP1, that I have been tasked with fixing. The
laptop was failing on bootup, displaying that ntoskrnl.exe was missing or
corrupt.
I have rebooted the laptop into the recovery console, and copied over the
ntoskrnl.exe from the XP Pro CD to C:\windows\system32 and then attempted to
reboot. The laptop now gets as far as displaying the Windows XP logo, before
the screen goes blank and nothing appears to happen. I have tried to boot the
machine in Safe Mode, but only get as far as the agp440.sys file being
displayed - at which point the laptop hangs.

I have since then copied over both the NTDLR and NTDETECT.COM from the XP
PRO CD, but this has not solved the problem.
Any ideas on how to fix?

 

[Thorsten Matzner]

I have a latpop runnin XP Pro SP1, that I have been tasked with fixing. The
laptop was failing on bootup, displaying that ntoskrnl.exe was missing or
corrupt.
I have rebooted the laptop into the recovery console, and copied over the
ntoskrnl.exe from the XP Pro CD to C:\windows\system32 and then attempted to
reboot. The laptop now gets as far as displaying the Windows XP logo, before
the screen goes blank and nothing appears to happen. I have tried to boot the
machine in Safe Mode, but only get as far as the agp440.sys file being
displayed - at which point the laptop hangs.

This may indicate that there is a problem with this driver. Try
booting to the Safe Mode with Command Line. If this works, see "How to
Start System Restore Tool From a Command Prompt in Windows XP"
(http://support.microsoft.com/?kbid=304449) for about how to go on.
Else reinstall Windows: "How to Perform an In-Place Upgrade
(Reinstallation) of Windows XP"
(http://support.microsoft.com/?kbid=315341).