Multiple map installs on Nuvi 3590 LM

Hi,

I appear to have ended up with multiple installs of the NTU Europe Map on my Garmin/SD card. I've only ever installed using Garmin Express directly downloaded from the Garmin site and, as the map doesn't fit on the Garmin directly, I thought it installed to the attached SD card.

After the most recent install Garmin Base camp is telling me I have NTU 2017.3 installed on the Garmin AND the SD card and 2017.2 on the SD card. I have attached a screen shot of my Garmin's drive and the attached SD card. Could someone help me with the files I could delete - there are so many, I only want a single copy of the most recent map.

Also I now seem to have far too many Garmin Apps on my Mac:

Base Camp
Garmin Express
Garmin Map Update
Garmin Mapinstall
Garmin MapManager
Garmin POI Loader
Garmin Webupdater

7! Base Camp I use all the time and Express for updates but the others?

Thanks