Windows 8 Product Key Generator
It's Windows reimagined and reinvented from a solid core of Windows 7 speed and reliability. It's an all-new touch interface. It's a new Windows for new devices. And it's easy to try now—whether you're installing it for the first time, or moving from Windows 8 Consumer Preview.
Windows 8 Release Preview works great on the same hardware that powers Windows 7:
Additional requirements to use certain features: