Do I have to uninstall the previous version of HealthMapper already installed in my computer before installing HealthMapper version 4.x?
YES. Before installing the HealthMapper version 4.x, any existing HealthMapper should be removed. For further details, please consult the HealthMapper Learners’ Guide, Part 1 – Introduction and Installation (Chapter 4 ‘Installing HealthMapper’ ; point 2, ‘Remove any existing HealthMapper version’).