NTVDM CPU has encountered an illegal instruction.

[Dick]

I get the following pop-up box at start-up now. I have
just installed XP Home service pack 2 to try and get rid
of the pesky pop-up to no avail.
______________________________________________________
16 bit MS-DOS SubSystem
______________________________________________________

C:\Progra~1\COMMON~1\updmgr.exe
The NTVDM CPU has encountered an illegal instruction.
CS:0f79 ip:001d OP:ff ff ff ff ff Choose 'close' to
terminate the application.

Close Ignore
______________________________________________________

If you click either 'close' or 'ignore' it disappears and
the computer works OK (though am I imagining it now runs
slower???) until the next log on when it appears again.

How do I get rid of it?

 

[Kelly]

Hi Dick,

See if this helps:

Error Message: MS-DOS or 16-bit Windows-based program
http://www.kellys-korner-xp.com/xp_m.htm#16bit

More info here:
http://www.google.com/search?hl=en&...red+an+illegal+instruction&btnG=Google+Search

 

[Rick \Nutcase\ Rogers]

Hi,

Start by removing the malware that installed updmgr.exe:
http://www.neuber.com/taskmanager/process/updmgr.exe.html

This can assist you:

Adaware www.lavasoft.de
Spybot www.safer-networking.org

This one can help you avoid these programs from being installed in the first
place:
Spyware Blaster: www.javacoolsoftware.com/spywareblaster.html

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP

Associate Expert - WindowsXP Expert Zone

Windows help - www.rickrogers.org