馃え No, you don't install #Linux on your "OLD" computer, you install it on your current one - as the "NEW" computer remains in the store and does not belong to you, as you were not forced to buy it, and you prefer to keep the money instead.
鈥ubs me the wrong way every time I read this during #endof10
Also: please do install Linux on NEW computers, too. Don't bias yourself into thinking Windows is somehow snappier by giving it the faster hardware 馃槈