On Windows:
In order to make sure that things work as epxpected we don't use a globally installed Python version but install a local one. This does not require any adminstrator privileges.
Simply double-click the installSphnix.bat to install Python
and Sphinx. Once done double-click on make-html.bat in order
to build the HTML version. The resulting HTML is then in
build/html/index.html.
If you want to build other formats have
a look at make.bat and its options.