You may not be aware, but public libraries offer internet (and other services like word processing) to the public. As you can imagine the kids (and adults!) love to get in and tweak settings and change things which used to drive us crazy (although we did have a hardware product that offered some protection from sticky fingers!!). The Deep Freeze product is just so much easier to set up and manage. And, we have found that once it is installed and running we don't have to keep revisiting PC's to fix up problems that used to creep through with the hardware solution. Kids love to try and "break" the software on the PC's but with Deep Freeze its just a case of a reboot and the original settings are restored.