When you buy a new car remember to never have it serviced and always leave the doors unlocked when you park up in town. Obviously this is a stupid statement, but people buy new computers and never consider running routine maintenance and making backups. The same is true for free anti-virus programmes, barely worth the time spent installing them and can cost you far more if your bank accounts are hijacked or your website hacked. Then there is identity theft, when your free deal gets REALLY expensive!