Brand: Microsoft. Minimium System Requirements: minumum requirments for Windows 7 on your PC : a€? 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor a€? 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit) a€? 16 GB available hard disk space (32-bit) or 20 GB (64-bit) a€? DirectX 9 graphics device with WDDM 1.0 or higher driver. Additional requirements to use certain features: a€? Internet access (fees may apply) a€? Depending on resolution, video playback may require additional memory and advanced graphics hardware a€? For some Windows Media Center functionality a TV tuner and additional hardware may be required a€? Windows Touch and Tablet PCs require specific hardware a€? HomeGroup requires a network and PCs running Windows 7 a€? DVD/CD authoring requires a compatible optical drive a€? BitLocker requires Trusted Platform Module (TPM) 1.2 a€? BitLocker To Go requires a USB flash drive a€? 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 a€? 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.. Number of Users: 1. Type of Software: Operating system.