I bought norton internet security 2007 last week. I’ve installed it on my laptop where windows XP pro is installed. Next week I can get Windows Vista Home Premium (free, because I have an upgrade coupon). I’ve activated norton on XP. But after I install vista (clean install), can I then reactivate norton after I install it on Vista? (no changes in hardware)
it should be fine, you can re-activate it for like 3 more times.
Thanks for the information. First I was scared that I had to pay another $70 for a new product key. 
If you do have any problems, you can give customer services a call and they’ll tell you how to activate it again.
That’s a good idea. btw I’ve seen the option to save the activation data to a norton account. So I can create a norton account, save my activation data, and if I ever have to reinstall windows and/or norton, then I just have to log on to my norton account and retreive the activation data.