Windows Operating System Timeline

Windows 1

Nov 20, 1985

Windows 1 was released

windows 2

Dec 9, 1987

Windows 2 was released

Windows 2.1

May 27, 1989

Windows 2.1 is released

Windows 3.0

May 22, 1990

Windows 3.0 is released

Windows 3.1

Apr 6, 1992

Windows 3.1 is released

Windows 95

Aug 24, 1995

Windows 95 is released

Windows 98

Jun 25, 1998

Windows 98 is released

Windows 2000

Feb 17, 2000

Windows 2000 is released

Windows ME

Sep 14, 2000

Windows ME is released

Windows XP

Oct 25, 2001

Windows XP is released

Windows Vista

Jan 30, 2007

Windows Vista is released

Windows 7

Oct 22, 2009

Windows 7 is released

Windows 8

Oct 26, 2012

Windows 8 is released

Windows 8.1

Oct 17, 2013

Windows 8.1is released

Windows 10

Jul 29, 2015

Windows 10 is released