[c]Computer and processor: 500 MHz or faster processor
Memory: 256 MB RAM; 512 MB recommended for graphics features and certain advanced functionality.1
Hard disk: 3.0 GB available disk space
Display: 1024x576 or higher resolution monitor
Operating system: Windows XP (must have SP3) (32-bit), Windows 7, Windows Vista with Service Pack (SP) 1, Windows Server 2003 with SP2 and MSXML 6.0 (32-bit Office only), Windows Server 2008, or later 32- or 64-bit OS.
Graphics: Graphics hardware acceleration requires a DirectX 9.0c graphics card with 64 MB or more video memory.
Additional Requirements: Internet Explorer (IE) 6 or later, 32 bit browser only. IE7 or later required to receive broadcast presentations. Internet functionality requires an Internet connection.
Multi-Touch features require Windows 7 and a touch enabled device.
Certain inking features require Windows XP Tablet PC Edition or later.
Speech recognition functionality requires a close-talk microphone and audio output device.
Internet Fax not available on Windows Vista Starter, Windows Vista Home Basic, or Windows Vista Home Premium
Information Rights Management features require access to a Windows 2003 Server with SP1 or later running Windows Rights Management Services.
Certain advanced collaboration functionality requires connectivity to Microsoft SharePoint Foundation 2010 or to Microsoft Office SharePoint 2007.
Certain online functionality requires a Windows LiveTM ID.
Other: Product functionality and graphics may vary based on your system configuration. Some features may require additional or advanced hardware or server connectivity; www.office.com/products.