During extended support, Microsoft provides security patches to everyone, but offers other fixes only to organizations that have signed support contracts with Microsoft.
Until the change, Vista's consumer editions -- Home Basic, Home Premium, Starter and Ultimate -- were to be retired from support in less than two months, on April 10, 2012. The new policy extends that date to April 11, 2017.
Windows 7's consumer editions were due to drop off the support list on Jan. 13, 2015, a deadline that has now been moved to Jan. 14, 2020.
In 2007, Microsoft pushed out the end of mainstream support for Windows XP Home to 2009 and its retirement date to April 2014.