Professional

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 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

Price : USD 160,-