What came out first windows xp or windows vista

Windows XP came before Windows Vista.

http://windows.microsoft.com/en-us/windows/history#T1=era6

Windows XP Home Edition desktop via kwout

Windows XP was released October 25, 2023 with a redesigned look and feel that's centered on usability and a unified Help and Support services center. It’s available in 25 languages. From the mid-1970s until the release of Windows XP, about 1 billion PCs have been shipped worldwide.

Windows XP Home Edition offers a clean, simplified visual design that makes frequently used features more accessible. Designed for home use, Windows XP offers such enhancements as the Network Setup Wizard, Windows Media Player, Windows Movie Maker, and enhanced digital photo capabilities.

Windows XP Professional brings the solid foundation of Windows 2000 to the PC desktop, enhancing reliability, security, and performance.

Windows Vista desktop via kwout

Microsoft Vista was launched in 2006 with the strongest security system yet. User Account Control helps prevent potentially harmful software from making changes to your computer.

In Windows Vista Ultimate, BitLocker Drive Encryption provides better data protection for your computer, as laptop sales and security needs increase. Windows Vista also features enhancements to Windows Media Player as more and more people come to see their PCs as central locations for digital media. Here you can watch television, view and send photographs, and edit videos.

To learn more, here's a timeline of events in the history of Microsoft Windows from 1975.

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Tuesday, October 18 2016
Source: http://windows.microsoft.com/en-us/windows/history#T1=era6