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16 bit MS-DOS Subsystem Error - Biosctl.exe

Hello,

Everytime I boot up Windows XP the following error message occurs:-
16 bit MS-DOS Subsystem
c:\windows\ui\biosctl.exe
c:\windows\system32\autoexec.nt. The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'close' to terminate the application

You then have the option to Close or Ignore

Things I have done so far to reslove this are:-
expanding from the Windows XP CD, Config.nt, Comand.com and autoexec.nt to the system32 folder.
A complete virus scan with an up to date version of norton anti virus.
Spyware scans.
Re-install of motherboard drivers

None of the above has solved my problem.

Curiously, everytime I reboot, autoexec.nt dissappears from the system32 folder.

This version of Windows XP has service pack 2 installed

Any help on resolving this is much appreciated

Many thanks

Mbrazier
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mbrazier
Asked:
mbrazier
1 Solution
 
IanThCommented:
have you searched the registry for the file





HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
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IanThCommented:
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mike2747Commented:
Try this. You stated that you've done one of the steps listed on this page, but try the others.

http://pages.prodigy.net/daleharris/xperrors.htm
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synqueCommented:
You could also look at this question that was solved yesterday:
http://www.experts-exchange.com/Operating_Systems/WinXP/Q_21330089.html
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NoirLunaCommented:
Yeah, sounds like you have got that nasty piece of software.

What Synque said. ^^^ Look there.
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mbrazierAuthor Commented:
Many thanks for all of your tips

I will try them out when I next use the PC tonight and get back to you.

Thanks again
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Ric TuteroCommented:
go to visualtour.com/downloads & get xp_fix.exe run that & clear your startup. there might be a 16-bit app running there causing this. but only use this program ONLY IF you actually WANT this startup program to run on startup, or if it's an installation, if you actually want this installaion to finish.
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mbrazierAuthor Commented:
Many thanks for all of your help/tips.

I had a rather nasty piece of spyware installed. Took hours to get rid of!!
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