Microsoft Windows 3.1

Microsoft Windows 3.1 cheat codes: 
View Bill Gates:
Start any program that came with the original Windows installation
(Calculator, Clock, etc.) or the Program Manager.
Hold [Ctrl] + [Shift] and select "Help". Keep the keys held and
select "About!". A window will appear with an icon near the top-left
corner. Keep the keys held and double click the center that icon.
Keep the keys held and select "Ok". Repeat these steps while keeping
those keys held at least three times until the picture appears.