The Python Users list most often asked question seems to be from Windows users who run the installed multiple times because they assume that the install is the python program.
Followed by I installed Python, where is it?
My suggestion is that the installer wizard "Setup was successful" panel has a link to a getting started on Windows with Python page.
I'd also suggest to layout the information that is key before the thank you to Mark Hammond.
Getting started with Python on Windows Python Tutorial Python documentation What's new Special Thanks
I would also suggest adding all of these as links in the Start Menu. Currently the menu is:
IDLE Python Python manuals Python Module Docs
Becomes: IDLE Python Getting started with Python on Windows Python documentation
I'd also suggest being clear about the use of py.exe and python.exe in the getting started on windows docs. I have assumed that py.exe is the preferred command line tool to start python if that is right document it as such.
With py.exe no need to mess with the PATH.