Processor Required 1GHz or faster 32-bit (x86) or 64-bit (x64) processor Memory Required 1GB RAM (32-bit) / 2GB RAM (64-bit) Video card DirectX 9 graphics processor with WDDM 1.0 or later driver. Hard disk 16GB available disk space (32-bit) / 20 GB (64-bit). For the download version, an additional 3GB is required. Other 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 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. Windows 7 Ultimate gives you everything Home Premium and Professional offers?plus added security features and the flexibility to work in multiple languages. Create a home network and share all of your favorite photos, videos, and music. You can even watch TV programs for free, whenever and wherever you want. Take a look at these highlighted features in Windows 7 Ultimate: Get everything Home Premium and Professional offers?plus added security features and the flexibility to work in multiple languages Use BitLocker and BitLocker To Go to better protect your valuable files?even on removable drives such as USB devices Access corporate resources seamlessly when you?re on the Internet, without having to initiate a VPN connection* Switch among any of 35 languages as easily as logging off and back on again Back up your files to an external hard drive, secondary hard drive, writable CD or DVD, or to a network location Take advantage of the powerful diagnostics and troubleshooters built into Action Center to resolve many computer problems on your own Watch, pause, and rewind TV or record it to watch whenever and wherever