System Requirements
Windows Developer Preview works great on the same hardware that powers Windows Vista and Windows 7:
    1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
    1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
    16 GB available hard disk space (32-bit) or 20 GB (64-bit)
    DirectX 9 graphics device with WDDM 1.0 or higher driver
    Taking advantage of touch input requires a screen that supports multi-touch
    To run Metro style Apps, you need a screen resolution of 1024 X 768 or greater