You can install the 32-bit or 64-bit x 86-based computer. Activation is not required, but it is far from the finalized version of the OS, so if you are installing, waiting for bugs and errors. In any case, you should definitely check out the Guide to Windows 8 Microsoft to get an idea of what you can expect the next version of Windows. Also, check the of the new features Windows, four main 8 list.
Direct download from here, is available. If you want to install it, Share your experiences in the comments!
View as a slide show» Microsoft demonstrated a lot of Windows 8 devices, including Tablet PC devices to Build Conference
in Anaheim, California, CA. Windows 8 devices: A Closer Look, these are a few devices where Windows 8 Microsoft Build Conference. 
"Custom Lock screen displays the unread e-mail messages and other app notifications. The following image is a photograph of the road into captivity in New Zealand, Mt. Cook National Park. "
Courtesy of Microsoft
"See applications, and content in a glance in the Welcome screen."
Courtesy of Microsoft
"Click to select the files you want to send or share location."
Courtesy of Microsoft
"Touch browsing is fast, fluid and intuitive."
Courtesy of Microsoft
"Thumb keyboard it feels natural and comfortable."
Courtesy of Microsoft
"The large buttons help you write on the touch screen keyboard."
Courtesy of Microsoft
In the Windows Division President Steven Sinofsky was President Steven Sinofsky was to bring the Windows sharing the stage at the Build.
