eMachines Official Site: Upgrade to Windows 7

System Requirements

• 1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
• 1 GB RAM (32-bit) / 2 GB RAM (64-bit)
• 16 GB available disk space (32-bit) / 20 GB (64-bit)
• DirectX® 9 graphics device with WDDM 1.0 or higher driver.

Product functionality and graphics may vary based on your system configuration. Some features may require advanced or additional hardware; visit windows.microsoft.com/system requirements.  

Some features in earlier Windows versions are not included in Windows® 7. Download Windows Live™ Essentials to get similar programs including Windows Live™ Mail, Photo Gallery, Messenger and Movie Maker for free at download.live.com.  

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
• Touch functionality requires specific hardware
• Sharing printers and documents requires a network and PCs with Windows® 7
• Music and sound require audio output.
• Windows® XP Mode requires:
  • Additional 1GB of RAM
  • Additional 15GB of available disk space
  • Processor capable of hardware virtualization, with Intel® TV or AMD-V® turned on.