Microsoft Timeline

Windows 1.0

Nov 20, 1985

https://en.wikipedia.org/wiki/Windows_1.0

Windows 2.0

Dec 9, 1987

https://en.wikipedia.org/wiki/Windows_2.0

Windows 2.10

May 27, 1988

https://en.wikipedia.org/wiki/Windows_2.1x

Windows 3.0

May 22, 1990

https://en.wikipedia.org/wiki/Windows_3.0

Windows for Workgroups 3.11

Nov 8, 1993

https://en.wikipedia.org/wiki/Windows_3.1x

Windows 95

Aug 24, 1995

https://en.wikipedia.org/wiki/Windows_95

Windows NT 4.0

Aug 24, 1996

https://en.wikipedia.org/wiki/Windows_NT_4.0

Windows 98

Jun 25, 1998

https://en.wikipedia.org/wiki/Timeline_of_Microsoft_Windows

Windows 2000

Feb 17, 2000

https://en.wikipedia.org/wiki/Windows_2000

Windows ME

Sep 14, 2000

https://en.wikipedia.org/wiki/Windows_ME

Windows XP

Oct 25, 2001

https://en.wikipedia.org/wiki/Windows_XP

Windows Vista for Home use; released in fifty countries

Jan 30, 2007

https://en.wikipedia.org/wiki/Windows_Vista

Windows 7

Oct 22, 2009

https://en.wikipedia.org/wiki/Windows_7

Windows 8

Oct 26, 2012

https://en.wikipedia.org/wiki/Windows_8

Windows 10

Jul 29, 2015

https://en.wikipedia.org/wiki/Windows_10