Microsoft has released Windows Vista in four different editions. The table below will show you the differences between the editions. If you buy one edition and decide to upgrade Microsoft has built in a tool called "anytime upgrade" so you can go online and purchase the new edition and upgrade via the internet instantly.
Features
Home Basic
Home Premium
Business
Ultimate
Most secure Windows ever
with Windows Defender and Windows Firewall
Quickly find what you need
with Instant Search and Windows Internet Explorer 7
Elegant Windows Aero desktop experience
with glass-like menu bars, Windows Flip 3D, and Live Thumbnails
Best choice for laptops
with Windows Mobility Center and Tablet PC support
Collaborate and share documents
with Windows Meeting Space
Experience photos and entertainment
in your living room with Windows Media Center
Enjoy Windows Media Center
throughout your home with Media Center Extenders
Protect against hardware failure
with Windows Complete PC Backup and Restore
Use Scheduled Backup
to automatically backup your files
Easier remote access for your business
Get to the resources and applications you need with Remote Desktop Connection
Easier networking connectivity
Stay connected wherever and whenever you like with Network and Sharing Center
Better protect your data
against loss with Windows BitLocker Drive Encryption
Easily make DVDs
with Windows DVD Maker
Have more fun on your PC
with three new premium games: Chess Titans, Mahjong Titans, and Inkball
Create high definition movies
with Windows Movie Maker in High Definition