@JP_8988626 wrote: Have a Lizenzen for Mathcad 7 and want to install it
Select the location on your hard drive where Mathcad Prime will be installed, press Install. Wait until the installation i completed, press Finish. Start ”PTC Mathcad License Wizard”. Chose the option ”Activate purchased license” to activate with the license key that you obtained from the IT support, press Next.