skeeter@tritel.net wrote:

>If I buy a new car with Goodyear tires I can removing
>them and put them on my other car or any another car I
>want.

You OWN them, so you can do what you want with them.

>If I but a new computer with XP or Vista why can't I
>remove the OS and put it on my other computer.
>Can some explain this in simple terms?

You don't OWN either XP or Vista. You have bought a LICENSE to USE it
according to the license terms. It's like you are renting it.

Simple enough?