Neobux

My computer came with a free version of Norton and I have been using it ever since. But I keep reading that antivirus software will slow down my computer and that Norton is one of the worst at doing this.

Is there any truth in that, and can I stop it from happening?

fudge

Yes they can slow your PC down (some more than others). It really depends on your AV settings and how it is configured to scan.

Scanning "on access" means that you will have great protection as it will scan each application every time you run it. "On demand" will only scan when you manually check an application, so although your PC will faster - it's next to useless, as the one time you need it, it won't be running. Usually there's a compromise in a "smart scan" that only scans a file if it hasn't been checked before, or if it has been modified since.

mldebo

Antivirus and / or Internet Security Software Slow down your system because they eat up the resources. So it is advisable to choose the one which eats less resources as every Security Software eats resources!!!!!