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The release candidate was available from April 30, 2009 for MSDN and Technet subscribers, and was released to the public on May 5, 2009. The final build of Windows 7 was released to manufacturing on July 22, 2009;<ref>{{cite web |url=http://arstechnica.com/microsoft/news/2009/07/microsoft-windows-7-is-done-on-its-way-to-manufacturers.ars |title=Microsoft: Windows 7 is done, on its way to manufacturers |last=Protalinski |first=Emil |date=2009-07-22 |publisher=Ars Technica |accessdate=2009-07-22}}</ref> Technet and MSDN subscribers were able to download it on August 6. On October 22, the operating system was made generally available for public purchase.
==History==
In 2000, Microsoft was planning to follow up [[Windows XP]], and its server counterpart, [[Windows Server 2003]] (both codenamed ''Whistler''), with a major new release of Windows, [[Microsoft code names|codenamed]] ''Blackcomb'' (both codenames refer to the [[Whistler-Blackcomb]] resort). This new version was, at that time, scheduled for a 2005 release.<ref>[http://www.wininsider.com/news/?226 Microsoft pushes back Blackcomb to 2005]</ref><ref>[http://news.cnet.com/2100-1001-966174.html .Net Server: Three delays a charm?]</ref>
Major features were planned for Blackcomb, including an emphasis on searching and querying data, and an advanced storage system named [[WinFS]] to enable such scenarios. In this context, a feature mentioned by Microsoft co-founder Bill Gates for Blackcomb was "a pervasive typing line that will recognize the sentence that [the user is] typing in."<ref>{{cite web |url=http://www.microsoft.com/presspass/exec/billg/speeches/2000/07-12pdc.aspx |title = Professional Developers Conference Remarks |last=Gates |first=Bill |authorlink=Bill Gates |publisher=[[Microsoft|microsoft.com]] |date = 2000-07-12 |accessdate=2008-03-05}}</ref>
Later, Blackcomb was delayed, and an interim, minor release, codenamed "Longhorn" (named for the Longhorn Tavern between the resorts), was announced for a 2003 release.<ref>{{cite web |url= http://www.theregister.co.uk/2001/10/24/gates_confirms_windows_longhorn |title=Gates confirms Windows Longhorn for 2003 |last=Lettice |first=John |date=2001-10-24 |publisher=The Register |accessdate=2008-03-05}}</ref> By the middle of 2003, however, Longhorn had acquired some of the features originally intended for Blackcomb, including [[WinFS]], the [[Desktop Window Manager]], and new versions of system components built on the [[.NET Framework]]. After the 2003 "Summer of Worms", where three major viruses − [[Blaster (computer worm)|Blaster]], [[Sobig (computer worm)|Sobig]], and [[Welchia]] − exploited flaws in Windows operating systems within a short time period, Microsoft changed its development priorities, putting some of Longhorn's major development work on hold in order to develop new service packs for Windows XP and [[Windows Server 2003]]. [[Development of Windows Vista|Development of Longhorn]] was also "reset" in September 2004.
==See also==
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