This is the 64 bit edition of Windows 7 Home Premium 7 Home Premium Processor Required 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor Hard disk 16 GB available disk space (32-bit) / 20 GB (64-bit); for the download version, an additional 3 GB is required Memory Required 1 GB RAM (32-bit) / 2 GB RAM (64-bit) Video card DirectX 9 graphics processor with WDDM 1.0 or later driver Other Additional requirements to use certain features: Internet access (fees may apply) Depending on resolution, video playback may require additional memory and advanced graphics hardware For some Windows Media Center functionality a TV tuner and additional hardware may be required Windows Touch and Tablet PCs require specific hardware HomeGroup requires a network and PCs running Windows 7 DVD/CD authoring requires a compatible optical drive Music and sound require audio output Product functionality and graphics may vary based on your system configuration. Some features may require advanced or additional hardware.