I have set my computer to "Download updates for me, but let me choose when
to install them".
The tiny shield indicating that downloads are ready appears in the
notification area but if I click on it I am only offered the choice of
either an Express or a Custom installation.
What I need before I proceed further is what these downloads are, in case
there are some I don't wish to have.
How can I find this out?

T.I.A. for any assistance you can provide.