This site is being deprecated.
Please see the official X‑Plane Support page for help.
I am not from Laminar Research; just a flight simmer.
Further to the comment from Thomson (from Laminar Research) if your X-Plane product is not a 3rd party hybrid like Steam and you have installed X-Plane onto the desktop or a dedicated drive of your current PC, all you need to do is copy the full/complete X-Plane directory onto your new system via a USB stick or a portable drive to a dedicated location of your choice. I understand steam does a strange installation compared to the official version from Laminar Research.
"Everything" should then work. No need to reinstall X-Plane or carry out a partial copy/transfer of files. The integrity of what you have created on your existing PC will then be maintained. A time saver.
Good luck with your new machine.
This site is no longer being actively maintained.