Quote:
Insert and boot from your WindowsXP CD, at the first screen choose
R=Repair option, press the R key
Press the number that corresponds to the correct location for the installation of
Windows you want to repair. Typically this will be #1
Change to the drive that has the CD ROM.
CD i386
expand ntkrnlmp.ex_ C:\Windows\System32\ntoskrnl.exe
If WindowsXP is installed in a different location, just make the necessary change
to C:\Windows
Take out the CD ROM and type exit
That is an excerpt from another forum saying a similar problem. here is the link with all the responses, that might help you as well.