Future Microsoft End of Support Dates April 19 2014
The dates that follow are the office end of support dates given to the public by Microsoft:
-- Windows Vista (Service Pack 2)
The much maligned Windows Vista, as of the end of last year, is still used on many more computers than OS X by Apple.
** Mainstream support ends: No longer supported
** Extended support ends: April 11, 2017
-- Windows 7 (Service Pack 1) & Windows Server 2008 R2
This is currently the most popular release of Windows, and promises to hold that top spot for a very long time.
** Mainstream support ends: January 13, 2015
** Extended support ends: January 14, 2020