Thank you for answering, well I first downloaded MC to my laptop and found out I wanted it on my external HD, so I downloaded it again to my external used the registrationscode, then made a copy of it to another HD, wich said you have so many days left of this trial version,
when checking my mail it said that I already used one recovery "code" so I am down to nine in 24 hours, for me this is just a try out to how I want my setup in the future, what happens if I use all of them, do I have to buy it all over again?