svchost.exe - Application Error

I get the following error message for just about every step I take.

I have a Dell Optiplex GX620
XP Service Pack 3

What can I do to fix this condition?

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svchost.exe - Application Error

Thed instruction at "0x001a61ae" referenced memory at "0x00000000". The memory could not be "written."

Click on Ok to terminat the program
Click on CANCEL to debug the program
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Thanks.
LVL 18
WaterStreetAsked:
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sweepsConnect With a Mentor Commented:
here is a better set of directions.  http://forums.malwarebytes.org/index.php?showtopic=9573
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sweepsCommented:
95% chance of a virus.  try to install malwarebytes from malwarebytes.org and run a scan.
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WaterStreetAuthor Commented:
Hum!  Have always been running updated Norton 360.

The problem occurred after a physical move.  The computer might have been bounced around.  Maybe I should check to be sure my memory is seated properly?
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Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
sweepsCommented:
SVCHost is a process that normally is used to propagate virus infections nowadays.  You can check the memory and items like that, make sure cables are seated properly in the HDD and CDROM, but I would really give malwarebytes a run.  We use McAfee antivirus Enterprise and McAfee anti spyware and we still get virus's.
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richardsk-octjamaicaConnect With a Mentor Commented:
Sounds like you have a virus infection or adware, download, install, update and run Malwarebytes adware remover, and download escan anti-virus trial which will not only remove any infections but will also fix any other windows error that may be causing other errors, very effective, see links below for app download.

Malwarebytes: (free)
http://www.malwarebytes.org/ 

Escan Antivirus: (30-day full trial)
http://download.cnet.com/eScan-Anti-Virus-for-home-users/3000-2239_4-178758.html

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WaterStreetAuthor Commented:
Malwarebytes installs, but will not run.
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sweepsCommented:
Does it give you an error popup?  then when you close that error it gives you another one with a 0 in it?  
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WaterStreetAuthor Commented:

No error popup.  I can run other programs, though.
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sweepsCommented:
go to C:\Program Files\Malwarebytes' Anti-Malware  on your computer.  Then rightclick the mbam.exe file and rename it to hello.exe and then double click it to make it run.  see if that works.  also do you know how to get into safe mode on a reboot?
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Sudeep SharmaConnect With a Mentor Technical DesignerCommented:
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WaterStreetAuthor Commented:
The rename worked.  

Why?

Did the quick scan, and found a trojan in the Reg. for Firefox.  Didn't do restart yet, but still getting the error message.

I'm now doing the full scan and will restart when it is done.
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Sudeep SharmaTechnical DesignerCommented:
Rename worked because viruses today are smart enough to block the execution of various anti-virus and anti-spyware application and hence Malwarebytes wasn't working, but once you renamed it virus doesn't recognized it.

I would strongly recommend you to run the HitManpro after the full scan and a reboot before the scan.

Sudeep
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richardsk-octjamaicaCommented:
Download Escan now after running malwarebytes.
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sweepsCommented:
Glad to hear that you were able to get it running!  
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WaterStreetAuthor Commented:
I've been operating without any problems for the last two days.  Malwarebytes and HitmanPro each found a problem.  These removals reduced, but did not eliminate the problem.  My Symantec/Norton 360 had also been consistently generating its own SVChost error for months. The suggestion for another virus program reminded me to try uninstalling the Symantec 360 completely, which I did.  Installed Avast Internet Security. No more error messages after two days of heavy usage and several restarts.  I think it was the prob with Symantec 360.  Don't even want to reinstall it, even though I just paid the renewal.  My system is soooo much faster.  I bought a Mac to replace it last November.  Now my only problem is what to do with the Mac *laughing*  Thanks
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WaterStreetAuthor Commented:
Opened a new question regarding Avast Firewall that won't turn on.
See http://www.experts-exchange.com/Security/Software_Firewalls/Q_26930832.html
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