There is a simple easy way to check if your current computer hardware are up to Windows Vista.
Check your hardware compability

There are four Windows Vista Editions

  • Ultimate
  • Business
  • Home Premium
  • Home Basic

Windows Vista Ultimate
This edition gives you it all, offering all of the features found in Windows Vista Home Premium and Windows Vista Business.

Recommended system:

  • 1 GHz 32-bit (x86) or 64-bit (x64) processor
  • 1 GB of system memory
  • 40 GB hard drive with at least 15 GB of available space
  • Support for DirectX 9 graphics with:
    • WDDM Driver
    • 128 MB of graphics memory (minimum)
    • Pixel Shader 2.0 in hardware
    • 32 bits per pixel
  • DVD-ROM drive
  • Audio Output

Features:
Windows Defender and Windows firewall
Instant search and Internet Explorer
Windows Areo Desktop
Windows mobility center and Windows tablet pc support
Windows meeting space
Windows sideshow
Windows media center
Windows media center Extenders
Windows Complete PC Backup and Restore
Windows Fax and Scan
Scheduled backup
Remote desktop connection
Windows BitLocker Drive Encryption
Windows DVD Maker
Chess Titans, Mahjong Titans, and Inkball
Windows Movie Maker in High Definition

Windows Vista Business
This edition meets the need fo small businesses

Recommended system:

  • 1 GHz 32-bit (x86) or 64-bit (x64) processor
  • 1 GB of system memory
  • 40 GB hard drive with at least 15 GB of available space
  • Support for DirectX 9 graphics with:
    • WDDM Driver
    • 128 MB of graphics memory (minimum)
    • Pixel Shader 2.0 in hardware
    • 32 bits per pixel
  • DVD-ROM drive
  • Audio Output

Features:
Windows Defender and Windows firewall
Instant search and Internet Explorer
Windows Areo Desktop
Windows mobility center and Windows tablet pc support
Windows meeting space
Windows sideshow
Windows Complete PC Backup and Restore
Windows Fax and Scan
Scheduled backup
Remote desktop connection

Windows Vista Home Premium
This edition is for home desktops and mobile pc