Windows cannot access...

[Bernice]

I keep getting an error message after I boot up the
computer, and try to click on anything.
The header says:

C:\Program Files\Common Files\Symantec Shared\NMain.exe

and the message is:
"Windows cannot access the specified device, path, or
file. You may not have the appropriate permissions to
access the item."

And this happens sometimes, and on everything that is
clicked on, usually goes away after rebooting but it
started suddenly, we removed a trojan horse from our
computer, we now have 3 different spyware/antivirus
programs,they've found nothing recently. Any thoughts on
what could be causing this or how to fix?
Thanks!

 

[Michael Solomon \(MS-MVP Windows Shell/User\)]

I believe that file is a part of Norton Antivirus. First, check the
following as the message may be the result of a virus that disables various
security files including the one you mention:
http://securityresponse.symantec.com/avcenter/venc/data/[email protected]

If that is not the issue (Be sure to at least try to run a virus scan),
check the Symantec website, www.symantec.com and/or their tech support for
help with this issue.