Hi,

It would also be quite surprising if this depended on the 32/64 bits difference.

In any case it works for me (macOS 64 bit): it opens a window titled 'Welcome (1/29)' containing step one of the tutorial:

===

"Hello! I'm Professor Stef.

You must want me to help you learn Pharo.

So let's go to the first lesson. Select the text below, right-click and choose 'Do it'"

ProfStef next.

===

You are on Windows, are there any other Windows users that can confirm this either way ?