All packaged retail editions of Windows 7 with the exception of the Home Basic edition, include both 32- and 64-bit software.
The minimum requirements to run Windows 7 on a 32-bit computer are:
- 1 gigahertz (GHz) 32-bit (x86) processor
- 1 gigabyte (GB) RAM
- 16 GB available hard disk space
- DirectX 9 graphics device with WDDM 1.0 or higher driver
- 1 gigahertz (GHz) 64-bit (x64) processor
- 2 GB RAM
- 20 GB available hard disk space
- DirectX 9 graphics device with WDDM 1.0 or higher driver
Additional requirements to use certain features:
- Internet access
- 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, 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.