Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
You may have missed this:
Success!
Luc
An end of sale should not mean that I am unable to use a perpetual license.
This user apparently got a new license for Prime 4
Migrate Prime 4 and MathCAD 15 to new computer
Have you read the FAQ too? https://www.mathcad.com/en/-/media/files/pdfs/mathcad/end-of-sale-mathcad-faq-en.pdf
There may be a difference between 'a perpetual license and active maintenance' <=> 'a perpetual license' (and no active maintenance).
But in any case, you should contact PTC support to find out if they can help you transfer the license to your new machine.
Success!
Luc