POIs missing after installing in Garmin GPS

This may seem very basic but I can’t solve it.
I installed one osm_generic_windows.exe and worked perfectly in mi machine, but when I installed it both trough BaseCamp or using the image file, I cannot see any POI.
I have a Nüvi 3750 Garmins GPS.
Any clue on what I am doing wrongly?

Thanks.