If you want to run Windows 7 on your PC, here's what it takes: 1 gigahertz (GHz) or faster 32-bit (x86) 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM 16 GB available hard disk space (32-bit) or 20 GB DirectX 9 graphics device with WDDM 1.0 or higher driver 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 Windows XP Mode requires an additional 1 GB of RAM, an additional 15 GB of available hard disk space, and a processor capable of hardware virtualization with Intel VT or AMD-V turned on Music and sound require audio output |