The meeting marked the beginning of the development of Windows 8 and accordingly the employees were shown the ideas for the new Windows collected in the brainstorming phase in 2009 and early 2010.
I have put together some of the most interesting mockups from the videos below. Things like the start page with the Live - tiles, the file - Explorer with the menu volume and the new interface of Internet Explorer ( tabs next to the address bar ) were later implemented as 1: 1. Other things like the app store and especially the new task manager found their way into the finished Windows 8, but didn't have much in common with the first sketches.
Also interesting: At that time, a start button was planned on the left side of the taskbar. It was later submitted again with Windows 8.1.
The sidebar with the tiles ( penultimate picture ) did not come in shape at the time, but it is quite reminiscent of what we have today with the widgets in Windows 10 or 11.
Source: deskmodder.de
Credit - Former Windows boss; Steven Sinofsky