While you shouldn't use illegal keys, Kaspersky does offer legitimate ways to try the software before you buy.

: You can start the trial directly at the Kaspersky Small Office Security Free Trial page .

: Unless canceled, a paid annual subscription begins automatically after the 30 days.

: Visit the Kaspersky Small Office Security download page and select the version for your operating system.

The short answer is because it will cost you far more than the retail price.