You should note that before you download and install Windows 8 Consumer Preview, this product is prerelease software that may be substantially modified before it’s commercially released. Some product features and functionality may require additional hardware or software. If you decide to go back to your previous operating system, you’ll need to reinstall it from the recovery or installation media that came with your PC. Microsoft’s site has published ISO images for 32-bit (x86) and 64-bit (x64) English, Chinese (Simplified), French, German, and Japanese versions. The system requirements are as follows:

Processor: 1 gigahertz (GHz) or fasterRAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)Graphics card: Microsoft DirectX 9 graphics device or higherTo use touch, you need a tablet or monitor that supports multitouchTo access Windows Store and to download and run apps, you need an active Internet connection and a screen resolution of at least 1024 x 768To snap apps, you need a screen resolution of at least 1366 x 768