NTVDM CPU Has Encounter Illegal Instruction

[Guest carynne]

I have PC with win XP PRO, Everytime start up the PC, it will prompt this

messange " c:\winhost.exe The NTVDM CPU has encounter illegal instruction",

The option is closed or ignore. After click closed, another messange pop out

"C:\blok.exe The NTVDM CPU has encounter illegal instruction", anyway I still

can continue using the PC..

 

any idea what happened on the PC ?

 

 

 

 

 

 

 

--

Regards,

Lee

[Guest Pegasus \(MVP\)]

Re: NTVDM CPU Has Encounter Illegal Instruction

 

 

"carynne" <carynne@discussions.microsoft.com> wrote in message

news:6DD536F2-9AC6-421D-94E0-39BEE9265559@microsoft.com...

>I have PC with win XP PRO, Everytime start up the PC, it will prompt this

> messange " c:\winhost.exe The NTVDM CPU has encounter illegal

> instruction",

> The option is closed or ignore. After click closed, another messange pop

> out

> "C:\blok.exe The NTVDM CPU has encounter illegal instruction", anyway I

> still

> can continue using the PC..

>

> any idea what happened on the PC ?

>

> --

> Regards,

> Lee

 

Your PC is probably infected with a virus. Delete the two files you

mention, then get onto http://www.trendmicro.com and look for "House

Call" to perform an on-line scan. Do you have a good and up-to-date

virus scanner on your machine?

[Guest carynne]

Re: NTVDM CPU Has Encounter Illegal Instruction

 

We are using symantec antivirus & up to date, I tried on panda antive scan

but no virus detected, will scan with trend micro as suggested, thank you.

 

 

--

Regards,

Lee

 

 

"Pegasus (MVP)" wrote:

>

> "carynne" <carynne@discussions.microsoft.com> wrote in message

> news:6DD536F2-9AC6-421D-94E0-39BEE9265559@microsoft.com...

> >I have PC with win XP PRO, Everytime start up the PC, it will prompt this

> > messange " c:\winhost.exe The NTVDM CPU has encounter illegal

> > instruction",

> > The option is closed or ignore. After click closed, another messange pop

> > out

> > "C:\blok.exe The NTVDM CPU has encounter illegal instruction", anyway I

> > still

> > can continue using the PC..

> >

> > any idea what happened on the PC ?

> >

> > --

> > Regards,

> > Lee

>

> Your PC is probably infected with a virus. Delete the two files you

> mention, then get onto http://www.trendmicro.com and look for "House

> Call" to perform an on-line scan. Do you have a good and up-to-date

> virus scanner on your machine?

>

>

>

[Guest Uncle Marvo]

Re: NTVDM CPU Has Encounter Illegal Instruction

 

IMHO nearly all antivirus software will slow down your machine more and more

and more as time goes on. The one I use now which doesn't do this, is Avast!

4 by Alwil, which I have been using for ages now with no performance

problems or complaints.

 

JMHO though.

 

"carynne" <carynne@discussions.microsoft.com> wrote in message

news:6798C73A-7360-4101-8EA4-72ED096FB3BD@microsoft.com...

> We are using symantec antivirus & up to date, I tried on panda antive scan

> but no virus detected, will scan with trend micro as suggested, thank you.

>

>

> --

> Regards,

> Lee

>

>

> "Pegasus (MVP)" wrote:

>

>>

>> "carynne" <carynne@discussions.microsoft.com> wrote in message

>> news:6DD536F2-9AC6-421D-94E0-39BEE9265559@microsoft.com...

>> >I have PC with win XP PRO, Everytime start up the PC, it will prompt

>> >this

>> > messange " c:\winhost.exe The NTVDM CPU has encounter illegal

>> > instruction",

>> > The option is closed or ignore. After click closed, another messange

>> > pop

>> > out

>> > "C:\blok.exe The NTVDM CPU has encounter illegal instruction", anyway I

>> > still

>> > can continue using the PC..

>> >

>> > any idea what happened on the PC ?

>> >

>> > --

>> > Regards,

>> > Lee

>>

>> Your PC is probably infected with a virus. Delete the two files you

>> mention, then get onto http://www.trendmicro.com and look for "House

>> Call" to perform an on-line scan. Do you have a good and up-to-date

>> virus scanner on your machine?

>>

>>

>>

[Guest Malke]

Re: NTVDM CPU Has Encounter Illegal Instruction

 

carynne wrote:

> We are using symantec antivirus & up to date, I tried on panda antive scan

> but no virus detected, will scan with trend micro as suggested, thank you.

>

>

 

Notwithstanding your Symantic "protection", your computer is infected with

at the very least a trojan and probably some non-viral malware. You need to

clean up your machine or take it to a professional and have them do it for

you.

 

Go through these general malware removal steps systematically -

http://www.elephantboycomputers.com/page2.html#Removing_Malware

 

Include scanning with David Lipman's Multi_AV and follow instructions to do

all scans in Safe Mode.

 

http://www.elephantboycomputers.com/page2.html#Multi-AV - instructions

http://tinyurl.com/yoeru3 - download link and more instructions

 

When all else fails, get guided help. Choose one of the specialty forums

listed at the first link. Register and read its posting FAQ. You will

generally be asked to:

 

1. Download and execute HiJack This! (HJT) -

http://www.trendsecure.com/portal/en-US/threat_analytics/HJTInstall.exe

 

2. Disable Notepad's word wrap - In Notepad.exe; Format --> uncheck; "Word

wrap"

 

3. Download/run Deckard's System Scanner -

http://www.techsupportforum.com/sectools/Deckard/dss.exe

 

4. Save the scan results (Main.txt and Extra.txt)

 

5. And then post the contents of Main.txt and Extra.txt in your post at the

forum you chose. DO NOT POST LOGS IN THE MS NEWSGROUPS.

 

Standard disclaimer: I can't see and test your computer myself, so these are

just suggestions based on many years of being a professional computer tech;

suggestions based on what you've written. You should not take my

suggestions as a definitive diagnosis. If you can't do the work yourself

(and there is no shame in admitting this isn't your cup of tea), take the

machine to a professional computer repair shop (not your local equivalent

of BigComputerStore/GeekSquad). Please be aware that not all local shops

are skilled at removing malware and even if they are, your computer may be

so infested that Windows will need to be clean-installed. If possible, have

all your data backed up before you take the machine into a shop.

 

Malke

--

MS-MVP

Elephant Boy Computers

http://www.elephantboycomputers.com

Don't Panic!