First, thanks to AHT-GA, for your comments on my previos question. I
have now decided to download this, but since I suspect this will take
very long, I would like to have the computer do this when I don't use
the computer, such as during supper. Would you know how to launch this
update?

If you are looking to just point and click to start these updates, you
can go to the "Tools>Windows Update" in Internet Explorer. Depending
on how many you need to have done, you might need to check the
computer every 15 minutes to see if a restart or other action is
needed.

Thanks for your advice. I got to the windows update screen but cannot
figure out how to proceed.
Nothing happens when I either right double click or left double click
on "install now"