I would get rid of symantec and switch to another anti-virus program. You could also run HijackThis to see what is running on the computer that might be eating up resources.
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Browse All TopicsLaptop running slow, CPU usage at 15-16%. Internet Explorer at top of list, using like 58K memory usage and I can't remember how much CPU but it is also at top of list and much higher than everything else. I also see a very high usage of Symantec AntiVirus which is next on the list. Any thoughts? I checked all other processes and they all seem reasonable.
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I would get rid of Symantec myself. I used to have Norton antivirus now using Avast.
There are many other good antivirus out there, some are free like Avast and AVG.
What really slows windows down?
http://www.thepcspy.com/ar
Help! My computer is slow.
http://users.telenet.be/bl
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by: slam69Posted on 2008-07-01 at 07:47:38ID: 21908374
could be your symatec client is updating the pattern file is it a new install of symantec? disable symantec and see if it happens again if it does get rid of symantec and go for AVG :O)