Windows Evolution

1985 – Windows 1.0

1987 – Windows 2.0

1990 – Windows 3.0

1992 – Windows 3.1

1995 – Windows 95

1996 – Windows NT 4.0

1998 – Windows 98

2000 – Windows 2000

2001 – Windows XP

2007 – Windows Vista

2009 - Windows 7