When you buy norton 360 you get an email from symantec. You neec to keep this info forever. I kept mine on a word doc.
You are able to instal 360 on 3 computers.
Always download as afile and install from the file. You can use the same file on the 3 computers.
You click the install and it asks for the product key which you paste it in
you get the key from your norton account which is tricky to find you need to keep that info to
here is the link.
here is some info on 360, it is a good program.
Norton 360 turning it on/off
open task and settings page by right click the icon
the icon is located by the clock
click on advance settings
1.tick the three top boxes on the rhs column
2.click on the firewall, protection. bullet it on and alerts off
3 apply and close as required
4 click on undo and exclude select automatic tools tab. Untick the weak passwords check, tick the other three.
Untick the boxes above. Select the firewall off as well.
If you doing stuff like setting up a network, disable the firewall.
Get everything running, and enable the fire wall while its running. The firewall will make rules to suit.