Windows 7 system requirements If you want to run Windows 7 on your PC, here's what it takes:
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
For some Windows Media Center (
http://www.microsoft.com/windows/windows-7/features/whats-new-possibilities.aspx ) functionality a TV tuner and additional hardware may be required
Windows Touch (
http://www.microsoft.com/windows/windows-7/features/whats-new-possibilities.aspx?tab=5 ) and Tablet PCs require specific hardware
HomeGroup (
http://www.microsoft.com/windows/windows-7/features/whats-new.aspx?tab=6 ) 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 (
http://www.microsoft.com/windows/windows-7/features/whats-new-work.aspx?tab=2 ) 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
Product functionality and graphics may vary based on your system configuration. Some features may require advanced or additional hardware.