Instead of looking for a crack, you can use legitimate versions of the software that are either free or significantly discounted: Installing MC 14 with Windows 10 - PTC Community
Mathcad 14 is a powerful engineering calculation software that allows users to solve complex mathematical problems and perform various types of analyses. If you're interested in downloading Mathcad 14, here's a step-by-step guide to help you obtain the software.
You won’t have access to the latest security updates or the ability to open files created in newer versions of the software.