Kaspersky user here got the internet security suite 2009 and never notice it works well in the background doesn't annoy me with pop ups all the time isn't a resource hog though spec of pc might account for that updates sometimes twice an hour couldn't be happier with it. Used Nod32 for a bit but had a couple of things get on that i didn't like and went looking for something else. Plus if your a barclays bank customer Russ you can get kis 2009 for free

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