[TABLE="class: table ng-scope"]
<tbody>[TR]
[TH] Client operating systems
[/TH]
[TH] Latest update or service pack[/TH]
[TH] End of mainstream support[/TH]
[TH] End of extended support[/TH]
[/TR]
[TR]
[TD] Windows XP[/TD]
[TD] Service Pack 3[/TD]
[TD] April 14, 2009 [/TD]
[TD]
April 8, 2014 [/TD]
[/TR]
[TR]
[TD] Windows Vista[/TD]
[TD]
Service Pack 2 [/TD]
[TD] April 10, 2012 [/TD]
[TD] April 11, 2017 [/TD]
[/TR]
[TR]
[TD] Windows 7* [/TD]
[TD]
Service Pack 1 [/TD]
[TD] January 13, 2015 [/TD]
[TD] January 14, 2020 [/TD]
[/TR]
[TR]
[TD] Windows 8[/TD]
[TD]
Windows 8.1[/TD]
[TD] January 9, 2018 [/TD]
[TD] January 10, 2023 [/TD]
[/TR]
[TR]
[TD] Windows 10, released in July 2015**
[/TD]
[TD] N/A [/TD]
[TD] October 13, 2020 [/TD]
[TD] October 14, 2025
[/TD]
[/TR]
</tbody>[/TABLE]
Much of corporate America and small businesses are still on Win 7. The most critical items of support and security improvements are still intact.