Microsoft Windows 8, 6.2.8102.101

This build has been distributed at the build 2011 Conference in Anaheim.
It comes in 32-bit and 64-bit flavors, the 64-bit also has a separate release including Developer Tools like Visual Studio with Blend.

This was the first official preview of Windows 8.
It includes the features we know now in the Release To Manufacturing build of Windows 8, such as the Startscreen, Charms bar, Lockscreen and Control Panel, but as this is an early preview it looks and behaves differently, such as the Charms bar is in the left lower corner where the start menu was located.
When you open an Metro Application it also display's text besides the App specific Logo.
The Ribbon UI in this build resembles the Office 2007 / Windows Live, the aero is still transparent as in Windows 7, but more square.

It also includes several Sample Applications not shipped in the Release To Manufacturing version, although some do but are named differently.
- Internet Explorer
- Store (non-functional)
- Control Panel
- Socialite
- Weather
- Stocks
- News
- Tweet@rama
- build
- 5 in a row
- Piano
- Paintplay
- Labyrinth
- mopod
- Tile Puzzle
- NearMe
- Picstream
- Zero Gravity
- MeasureIt
- Alarms
- Treehouse Stampede!
- CheckM8
- Remote Desktop
- Memories
- Tube Rider
- Word Hunt
- Notespace
- Flash Cards
- Ink Pad
- Sudoku
- Copper
- Air Craft
- BitBox

Most of these applications were written by contest winners over the summer in 2011 at Microsoft.