Mathcad download link

See here: https://community.ptc.com/t5/Mathcad-Installation/reloading-Mathcad-in-new-windows-11-computer/m-p/1029415#M4744 

With an even older version of Mathcad you definitely should have the installation source yourself (on a CD or memroy stick). Getting its license activated is then your next challenge.

Success!
Luc

Hi @JK_11893908,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Of course, if you have more to share on your issue, please pursue the conversation. 

Thanks,
Anurag