What is the prevalence of viruses, malware, etc., to be hidden and undetectable by anti-virus software?

  • As before, when my computer when my computer has been infected, I get a svchost.exe error, repeatedly, whenever I restart the computer. The infection has been discovered that the last time by my anti-virus software, because it was hidden.  It was a computer expert on this forum who told me my computer was infected by svchost.exe repeated error messages that I received.  I ran my Avast software, anti-malware software from MSFT Security Center, Win Defender, etc. this time, and it has detected no infections.  (Yes, I know what to do to pass this message means not necessarily my computer is infected, but the tech guy said that it is likely, given that the error message appeared on several occasions).  How detect and destroy the virus/malware hidden, etc?
  • Also, if anyone can answer another question... I was told that it is not recommended that I have two programs of anti-virus software, which I do - Win Defender and Avast (I guess they may conflict).  I tend to want to keep Avast, but would like to know if I have to keep Win Defender instead, because it is a Win a Win system program.  If I've got this me getting rid of one of them, is it recommended that I both uninstall and then reinstall one of them?

A person help would be appreciated!

Thnx, Dharma

WHAT I HAVE: Win XP Media Center, MS Office 7 Professional (used at home), IE8, Outlook 7, HP w / 32-bit dual core processor, latest version of Avast & Win Defender, Srvc Pack 2 and 3 (although I know that I don't need 3 because I have not upgraded to Win 7, but it won't let me uninstall it!) and regularly updates Win.

PS Please ask questions if you have, before you answer, so it will be less likely that I'll get the wrong answers that don't relate directly my questions! (Can say you that has already happened?  (LOL).

You pouvez have a type of rootkit of malware infection.  Rootkits can transform and change of identity on your OS (and are difficult to detect and remove) and many computing professionals recommend a reinstall of the operating system in order to ensure that the rootkit is removed.

Follow the suggestions in the Brian - post.  The link that he provided is an excellent reference.   If you have a rootkit, TDSS Killer or one of the other programs listed pourrait be able to remove it.

You can also:

You can get free help in the removal of malware from MS Support here: http://supportservices.microsoft.com/support/services/virus_malware_removal

If you are in North America, you can call the MS Support to 866-727-2338 for help with infections of virus and spyware.

For international information see your subsidiary local technical support site.

Or get assistance from Avast at: http://www.avast.com/support

You have SP3 on your Win XP OS and if you plan to switch to Win 7 make sure that your processor and RAM will manage Win 7... with your history of technology issues a reformatting/clean install of Win 7 would be a good idea.  Because of the possibility of conflicts, I do not recommend using Windows Defender with Avast or any other resident AV program.  Suggest uninstall you Windows Defender in Control Panel.  MSE and several other AV programs require the removal of Windows Defender in XP (or disabling the Defender in Vista and Win 7).

Kind regards...

Tags: Windows

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