Community Tip - Your Friends List is a way to easily have access to the community members that you interact with the most! X
See here:
https://community.ptc.com/t5/Mathcad-Installation/All-About-Mathcad-Software-Installation/td-p/706433
and specifically:
https://community.ptc.com/t5/Mathcad-Tips/Transferring-Mathcad-Single-User-or-Student-license-from-an/ta-p/819143#M1600
Success!Luc