what i could suggest to help you speed up your computer a bit, is to uninstall norton via their uninstall tool that i think you can get from their website somewhere, it ends up working cleaner then the uninstall that comes with it, and install microsoft security essentials from microsofts website, for a free anti virus, and if you can, buy webroot internet security essentials, both work well in tandem, and they are what i currently run on my windows machine, both together use ~90mb of ram, out of 6gb. im betting norton would be using twice that