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NTVDM CPU has encountered an illegal instruction error

Last response: in Windows 2000/NT
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Anonymous
a b à CPUs
May 16, 2005 5:45:12 PM

Archived from groups: microsoft.public.win2000.general (More info?)

I am getting this error message when I try to access my registry under: Start
> Run > regedit

The the title bar of the error message box that says 6 bit MS-DOS Subsystem

I don't even know where to start to look for the issue..

Any Ideas?

Thanks ,

Brook
May 16, 2005 10:17:16 PM

Archived from groups: microsoft.public.win2000.general (More info?)

In news:F9DB1163-BBFD-40D5-B691-E56945973173@microsoft.com,
Brook <Brook@discussions.microsoft.com> had this to say:

My reply is at the bottom of your sent message:

> I am getting this error message when I try to access my registry
> under: Start
>> Run > regedit
>
> The the title bar of the error message box that says 6 bit MS-DOS
> Subsystem
>
> I don't even know where to start to look for the issue..
>
> Any Ideas?
>
> Thanks ,
>
> Brook

Brook,

Well, I tried but I just thought you'd find this interesting. I came up with
absolutely nothing of any real value but perhaps something to make you give
a wry smile?

The NTVDM CPU has encountered an illegal instruction.... :
http://www.microsoft.com/resources/documentation/Window...

I did have a good deal of fun searching. Have you checked for malware? Well,
that's probably not the case really... Hmm...

I know this is for XP specifically but you could try it (change the paths
etc) if you would like. It seems that XP is also subjected to the NTVDM CPU
errors and this is the fix according to the results from Google and that the
problem lies with the autoexec.nt file, or so the repairs seem to say...

Error message when you start a DOS or 16 bit Program:
http://support.microsoft.com/default.aspx?scid=kb;en-us;324767

(Specifically the autoexec.nt file is perhaps corrupt?)

I don't suppose it could hurt anything. You might want to wait until someone
else wanders in and says this is either the solution or not but you can try
it without fear of breaking anything.

Galen
--

"And that recommendation, with the exaggerated estimate of my ability
with which he prefaced it, was, if you will believe me, Watson, the
very first thing which ever made me feel that a profession might be
made out of what had up to that time been the merest hobby."

Sherlock Holmes
!