U3A computers are used mainly by rank beginners - and ageing ones at that (many are in their 70's and 80's). They are thrashed for six hours per day, five days per week, forty weeks per year. I have had almost a full-time job trying to keep all of them functioning, even with a number of restrictions that I introduced to minimise downtime through user error. Since installing Deep Freeze, the only maintenance that I have had to do is with hardware. There has been absolutely no software problem. This means that I am a very happy user who recommends Deep Freeze to anyone who cares to listen. It follows that I rate all aspects of the purchase, installation and operation process highly, and I am appreciative of the number of times that responses were personal and quick.