Hello CB_10245045,
As you have received the licensing email it would consists of attachments (text files). Follow below steps
For Node-locked license:
- Save license file on the hard drive
- Launch Mathcad Prime
- Click on the Mathcad button at the top-left corner and select Mathcad Options
- Select License tab
- Select File option under License Configuration and browse to the saved locked license file
- Click Apply and Close
This should help to license the application
Thanks,
Vipul