Intended for mainstream or lower-end graphics cards.

Uses the Avalon Desktop Composition window manager.

A Vista Driver Display Model (LDDM) driver is a requirement.

Some graphics cards already support LDDM. In some Vista builds (4074, 5048), LDDM is already supported to run Aero Glass.

To Go
The new Vista look & feel without any visual special effects, similar to the visual style Luna of Windows XP in that it resembles merely an application skin. As with Luna, no additional hardware requirements compared to the classic Windows interface.

A simple option for consumer upgrades, and mobile / low-cost devices. No additional requirements compared to the lesser Classic mode. Fallback mode in case the hardware requirements for Aero aren't met.

Classic
The most basic user interface offered by Vista, which is also seen in Windows 2000, or Windows XP with its visual style Luna deactivated.

An option for corporate deployments and upgrades.
Requires Windows XP Display Driver Model (XPDM) or LDDM drivers. No graphics card hardware requirements exceeding those of Windows XP.

Naming considerations
Vista means "the visual percept of a region", with these synonyms: aspect, panorama, prospect, scene and view. Translated from Spanish and Italian, vista means: sight, vision, ability to see; look, glimpse; spectacle; viewfinder; range of view; point of view.

In Latvian, however, vista means 'hen' (grown-up female of a bird, [2]) and 'chicken' (as in food), and may also connote something or someone not particularly agile or clever.

Windows Vista has been unofficially abbreviated to Windows VI, staying with the traditional 2 character motif, as in 95, 98, Me, NT, XP. VI is also the number 6 in Roman numerals, and Windows Vista will carry the version number 6.0 (Windows 2000 and Windows XP being Windows NT versions 5.0 and 5.1, respectively).

Windows Vista sound like "bosta" in Argentinian culture.

In the fiction of J. R. R. Tolkien, Vista is a part of the atmosphere that surrounds the world of Arda before the cataclysm at the end of the Second Age. Vista forms the inner layer of normal air: above it is Ilmen, and above that Vaiya.