Does Norton Anti Virus slow a computer down?

Posted on 2009-02-23
Last Modified: 2013-11-22
I have just looked at a friend's computer which is running  really slow. he has I Gb of Ram and is running Vista Basic . He also has Norton (Symantec) anti-virus firewall etc installed. Is it my imagination or can Norton slow a system down? I have seen other people with Norton and its always the same. I would be grateful for any advice on this and how I can tweak Norton to speed things up.
Question by:Brakers
    LVL 15

    Assisted Solution

    Absolutely! All anti-viruses slow computers down a little but in my opinion, Norton is worst!
    LVL 4

    Accepted Solution

    I agree with wantabe2. Norton is a memory HOG. I recommend AVG, Nod32, or Avira as a/v software.
    LVL 89

    Assisted Solution

    by:John Hurst
    Tell us whether Symantec or Norton (that is, Corporate or Consumer). They are different. I use Symantec Corporate and I disabled the Start Up Scan, and otherwise leave it all intact. My CPU runs at less than 2% more than 95% of the time and runs fast as blazes. .... T

    Author Comment

    Norton Home antivirus 2009
    LVL 4

    Expert Comment

    The home version is not my cup of tea. If you must use it, i would recommend increasing the amount of RAM in your system.

    Author Closing Comment

    many thanks to all who contributed

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