That's true, but the anti-virus companies are getting pretty smart and the OS is getting more resiliant. I use a free anti-virus and Windows updates are free, so zero pay.

>Agreed... but still we pay to upgrade our virus scanners and install Windows security patches. Our problem is that as each virus variant is defeated, the authors come up with new exploits to thwart detection. Always we will fight this battle unless we live in a walled garden.