Question / Help NDI Plug in doesn't show up

I have installed the OBS Studio which seems to work fine. I am a newbie with this stuff. I downloaded the OBS NDI plugin and restarted the machine. The NDI does not show up in the Tools tab or sources. I have uninstalled it and reinstalled it. I have uninstalled the OBS and the plugin and reinstalled them both. I have also watched mayne 5 videos on this issue but can''t seem to resolve it. Perhaps they have updated the plugin since the videos were made. I have an Intel Core i5 -4460 CPU 3.20 GHz, Any help would be appreciated.