Do not understand Sam Longleys post, Avast anti virus is free (provided you download the right (free) version, and remains so, and does not bombard you with ads for itself or anything else, although if you download from a third party site, you can get a virus bundled with your download, and the virus downloads the adds!, if you wait, as I did, the price for the bought version comes down with their regular "special offers" I think I initially paid about £14.95 for my pro version, which gives extra tools bells and whistles, but for basic protection, free is adequate, and I survived virus free for several YEARS before I bought it. Neither Avast, or ASC bombard you with anything, and if they did, I would neither use or recomend them! I have had repeatedly bad experiences with Norton and Macaffee, and when you add that to that what they cost, in my estimation, good though they now may be, they are only as good as Avast, and friighteningly more expensive! Neither are there any problems uninstalling and reinstallng Avast or ASC, the same cannot be said for Norton and Macaffee.They may be better than they used to be, but they are simply not worth the money. ASC is by Iobit software and Avast isAvast.com, Always download form the softwares own site, or a site they link you to.
Martin King2 Glad to hear your machine is running faster! Cannot recommend any backup software, sorry, but it is something I have never had need of.
Phil