NTOSKRNL missing or corrupted

I strongly doubt Spybot had anything to do with this.
This is a classic appearance of a file system that is in
need of CHKDSK /F run on all partitions. If you have more
than one partition, move the pagefile to another before
scanning. Even CHKDSK is locked out of the pagefile. If
you don't have another, reduce the pagefile to about 32MB,
run CHKDSK, then put hte pagefile back to your desired
size.

>-----Original Message-----
>I am tossing the subject into this form to share and to
>seek explanation and/or solution.
>
>I have implemented SP4 with no problems.
>I installed SPYBOT SEARCH & DESTROY, ran it and cleaned
>some files and registry entries.
>
>On the next occasion to boot up the system, when Win2K
was
>being loaded the loading stop with the message that the
>Windows 2000 root>\system 32\ntoskrnl.exe was either
>missing or corrupted.
>
>Press the reset button but received the same error
message.
>
>Switched off the power then on again to load. The loading
>of Win2K proceeded smoothly.
>
>I ran SPYBOT SEARCH & DESTROY to reverse the action on
the
>registry entries.
>
>The system is now back to normal ie the loading of Win2K
>has no problems.
>
>Prior to SP4 installation I used to go into the registry
>to edit which included deletion of some entries. I never
>encountered any loading problems with Win2K. I noticed
>that after I installed Q811493 but before SP4 the loading
>problem surfaced after the registry entries were edited.
>Q811493 was targetted to be in SP4.
>
>Does anyone know what is the cause of the loading problem
>for this particular scenario?
>If so what can or cannot we do to the registry?
>
>
>
>
>.
>