If the FW is installed as “Basic” (which makes it FW only, no HIPS), Defense+ still shows as a module in the application, just shown as “inactive” on the Summary page. Although the Defense+ settings can be changed and “applied” the “inactive” status does not change.
If D+ is not installed, it should not, IMO, be shown in the application GUI. This leads to misconceptions, problems and issues (and user frustration).
My understanding (which could be wrong) was that D+ was installed, just inactive/disabled. Change the settings and configure manually, and it would work. Apparently that’s incorrect.