When I run the
MikTeX's Update wizard on my
Windows 10 machine it shows a list of several packages with all being check marked (selected) as shown in a snapshot below. Does that mean the older version of all these packages are already installed on my system and need to be updated or does that mean that the wizard is showing the list of MiKTeX packages available online that were recently updated and that they are not necessarily on my system?
Note: I've a basic installation of MiKTeX on my machine. I don't know most of which of these packaes I need. I'm assuming the list shown in the wizard is of the packages that were installed by default during basic installation of MiKTeX. But want to make sure during upgrade wizard launch I don't endup installing packages I don't really need.