BaseCamp vanished

I have just uninstalled two old maps from my computer - Europe NTU 2015.10 and 2015.20, leaving 2015.30, using Windows control panel on Win7 64bit.

It said nothing about BaseCamp being uninstalled ... and Programs and Features still lists Garmin BaseCamp v4.3.5 (although I was sure I had v4.4.6) ... but it seems to have mostly vanished from my computer!

Is that what normally happens? If so, how are we supposed to remove old maps without destroying BaseCamp?