my pc is due for retirement shortley and i am going to purchase one without a operating system installed. therefore can i put this machines xp installation disc in my new machine which will be secondhand but which will have had xp in when new or will it offend mr gates. your thoughts welcome.
to run the software on more than one machine you can do what you propose. Your licence for Windows XP is for one machine only, and it's up to you to decide which machine that is. You must remove it from your old computer though.