The current client version of Windows, Windows Vista (codenamed Longhorn) was released on 30 November 2006 to business customers, with consumer versions following on 30 January 2007. Windows Vista intends to have enhanced security by introducing a new restricted user mode called User Account Control, replacing the "administrator-by-default" philosophy of Windows XP. Vista also features new graphics features, the Windows Aero GUI, new applications (such as Windows Calendar, Windows DVD Maker and some new games including Chess, Mahjong, and Purble Place a revised and more secure version of Internet Explorer, a new version of Windows Media Player, and a large number of underlying architectural changes.
Windows Vista ships in several editions:
- Starter (only available in developing countries)
- Home Basic
- Home Premium
- Business
- Enterprise (only available to large businesses and enterprises)
- Ultimate (combines both Home Premium and Enterprise)
All editions (except Starter edition) are available in both 32-bit and 64-bit versions. The biggest advantage of the 64-bit version is breaking the 4 gigabyte memory barrier, which 32-bit computers cannot fully access. In the first year after Vista's release, most installations were still 32-bit, due to poor driver support of the 64-bit version.
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