need to install old xara version on same PC

[handrawn]

click on deactivate to remove that registration - then you can reuse it on another computer - you have a maximum of two, but they can be any two

edit -: see next post

[handrawn]

It is very strange that you have one version 12 and one version 17 under ths same registration - have you use the same product key for both, that would explain it - they should each have their own product key, so what you need is that second product key.. it is a maximum of two computers per product key