Which student version do you have, the three user licence or the single user licence. If the former, you can use it on up to three separate computers. If you have the single user licence, then you will need to uninstall it from the old notepad before installing on your new machine. When you enter the product key it may refuse to validate, if this happens you will need to contact microsoft and explain what you have done. They should then enable validation.
Use this link click here|ga|4|Computer|Microsoft+-+2&JPKW=microsoft%20customer%20support&JPDC=S&JPST=&JPAD=6286352580&JPAF=txt&JPCD=20101104&JPRC=1&gclid=COie2t6OwqYCFQGHDgodgH2tGw to speak to a Microsoft support person on line - better than waiting for an email reply.
This thread is now locked and can not be replied to.