The PTC Community will be on read only status starting March 23rd in preparation for moving our platform to a new provider. Read more here
Try the following:
1. Create a backup (or just archive) of the config file (in this directory: C:\Users\CurrentUser\AppData\Local\PTC\).
2. Delete the current config file (in this directory: C:\Users\CurrentUser\AppData\Local\PTC\).
3. Run Mathcad Prime again.
