window 7 is much better than window vista it has the many advanced feature that is not in window vista like
Windows Search: Windows Search uses the index whenever you use the search box on the Start menu – in the Search Home folder, in libraries, and in locations that are part of a homegroup.
Desktop Gadgets: Choose from default gadgets in Desktop Gadget Gallery; you can also download and install additional third-party gadgets.
Windows shell enhancements: Aero Snap, Jump Lists, and Windows Flip.
Power management: Users can edit default power schemes as well as create custom schemes.
Windows ReadyBoost: Support for multiple USB flash drives used as backup memory to improve performance.
Device Stage: A tool for managing and configuring user installed devices such as cameras, phones, and printers.
Sync Center: Manages synchronization with mobile devices.
Windows Easy Transfer: Transfer files and settings from an old computer to a new one.
Windows Speech Recognition: Enter and edit text, and issue voice commands using a microphone.
Ease of Access features: High-contrast themes, Ease of Access Center, Magnifier, Narrator, and On-Screen Keyboard.
Virtual hard drive: Create a new VHD; attach an existing VHD.
Internet Explorer 8: Default Internet browser for Windows 7.
Games Explorer with basic games: Default games in Windows 7 FreeCell, Hearts, Minesweeper, Purble Place, Solitaire, and Spider Solitaire.
Basic productivity applications: Windows 7 includes Calculator, Paint, Notepad, and WordPad.
Windows Fax and Scan: It helps you while scanning documents, sending and receiving faxes.
Windows PowerShell and Integrated Scripting Environment: Command-line shell and graphical host application for scripting administrative tasks.
XPS Document Writer and Viewer: Provides capability to create and view documents using XML Paper Specification.