Last year, an upgrade attempt on Norton Systems Works Pro was not upgradable and had problems and crashed my operating system. Oh well, being one who learns slow, I reinstalled the OS and purchased a retail box for Norton Systems Works Premier 2005. Having had the product for 11 months, the product was just deactivated automatically by Norton. In talking to Norton CS, they indicated their product only allows three installs. I use backup hard drives and Norton CS says I installed it more than 3 times on other hard drives. Well of course. Every time I do a physical hard drive swap for back up purposes, there is another hard drive in the bay. And no, I am not going to send the product back for product key and verification only to have Norton deactivate me again. And yes they refused any compensation and refused to reactivate over the phone. The problem is with these bigger companies is that they forget who pays their bills, the customer. I'll use someting else.