windows 7 hardware requirements list:
Processor:1GHz or faster 32bit or 64bit
RAM: 1 GB RAM (32bit) or 2GB (64bit)
Hard disk space: 16 GB(32bit) or 20 GB(64bit)
Driver: DirectX 9 graphics device with WDDM 1.0 or higher
Additional features requirements:
Internet access (fees may apply)
Depending on resolution, video playback may require additional memory and advanced graphics hardware
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
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, an additional 15 GB of available hard disk space, and a processor capable of hardware virtualization with Intel VT or AMD-V turned on
