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

• WindowsXP Mode requires an additional 1 GB of RAM, an additional 15 GB ofavailable hard disk space, and a processor capable of hardwarevirtualization with Intel VT or AMD-V turned on

• Music and sound require audio output