Windows 7 system requirements

*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

Additional requirements to use certain features:

*Internet access (fees may apply)
*Depending on resolution, video playback may require additional memory and advanced graphics hardware
*Some games and programs might require a graphics card compatible with DirectX 10 or higher for optimal performance
*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
*BitLocker requires Trusted Platform Module (TPM) 1.2
*BitLocker To Go requires a USB flash drive
*Windows XP Mode requires an additional 1 GB of RAM and an additional 15 GB of available hard disk space.
*Music and sound require audio output