Timeline of Microsoft Windows

This article presents a timeline of events in the history of Microsoft Windows operating systems from 1985.

Desktop and server

The Windows family tree

Date	Title	Architecture
20 November 1985	Windows 1.0	x86 – 16-bit
9 December 1987	Windows 2.0	x86 – 16-bit
27 May 1988	Windows 2.10	x86 – 16-bit
13 March 1989	Windows 2.11	x86 – 16-bit
22 May 1990	Windows 3.0	x86 – 16-bit
20 October 1991	Windows 3.0 with Multimedia Extensions	x86 – 16-bit
6 April 1992	Windows 3.1	x86 – 16-bit
27 October 1992	Windows for Workgroups 3.1	x86 – 16-bit
27 July 1993	Windows NT 3.1	IA-32, DEC Alpha, MIPS
8 November 1993	Windows for Workgroups 3.11	x86 – 16-bit
21 September 1994	Windows NT 3.5	IA-32, DEC Alpha, MIPS
30 May 1995	Windows NT 3.51	IA-32, DEC Alpha, MIPS, PowerPC
24 August 1995	Windows 95	IA-32
24 August 1996	Windows NT 4.0	IA-32, DEC Alpha, MIPS, PowerPC
25 June 1998	Windows 98	IA-32
5 May 1999	Windows 98 SE	IA-32
17 February 2000	Windows 2000	IA-32
14 September 2000	Windows ME	IA-32
25 October 2001	Windows XP	IA-32
25 October 2001	Windows XP 64-Bit Edition (v2002)	Itanium
31 October 2002	Windows XP Media Center Edition	IA-32
28 March 2003	Windows XP 64-Bit Edition (v2003)	Itanium
24 April 2003	Windows Server 2003	IA-32, x64, Itanium
30 September 2003	Windows XP Media Center Edition 2004	IA-32
12 October 2004	Windows XP Media Center Edition 2005	IA-32
25 April 2005	Windows XP Professional x64 Edition	x64
6 December 2005	Windows Server 2003 R2	IA-32, x64, Itanium
8 July 2006	Windows Fundamentals for Legacy PCs	IA-32
8 November 2006	Windows Vista for Business use	IA-32, x64
30 January 2007	Windows Vista for Home use; released in fifty countries	IA-32, x64
7 November 2007	Windows Home Server	IA-32, x64
27 February 2008	Windows Server 2008	IA-32, x64
22 July 2009	Windows 7	IA-32, x64
22 October 2009	Windows Server 2008 R2	x64
6 April 2011	Windows Home Server 2011	x64
4 September 2012	Windows Server 2012	x64
26 October 2012	Windows 8	IA-32, x64
26 October 2012	Windows RT	ARM
18 October 2013	Windows 8.1	IA-32, x64
18 October 2013	Windows RT 8.1	ARM
18 October 2013	Windows Server 2012 R2	x64
Date	Title	Architecture

Mobile

Date	Release	Notes
November 16, 1996	Windows CE 1.0
June 25, 1997	Windows CE 1.01
September 29, 1997	Windows CE 2.0
November 1, 1997	Windows CE 2.0	Handheld PC (H/PC)
January 8, 1998	Windows CE 2.01	Palm-sized PC, Pocket PC (P/PC) and Smartphone
	Windows CE 2.01	Auto PC
March 1, 1998	Windows CE 2.10
July 1, 1999	Windows CE 2.11
September 28, 1999	Windows CE 2.12
April 19, 2000	Windows CE 3.0
	Pocket PC 2000	Palm-sized PC, Pocket PC (P/PC) and Smartphone
September 25, 2000	Windows CE 3.0 Core Add-on Pack
October 4, 2001	Pocket PC 2002	Palm-sized PC, Pocket PC (P/PC) and Smartphone
January 7, 2002	Windows CE 4.0
June 1, 2002	Windows CE 4.1 .NET Core
April 23, 2003	Windows CE 4.2 .NET Core
June 23, 2003	Windows Mobile 2003
March 24, 2004	Windows Mobile 2003 SE
July 9, 2004	Windows CE 5.0
May 9, 2005	Windows Mobile 5.0
September 15, 2006	Windows CE 6.0
February 12, 2007	Windows Mobile 6.0
April 1, 2008	Windows Mobile 6.1
May 11, 2009	Windows Mobile 6.5
November 8, 2010	Windows Phone 7
March 1, 2011	Windows Embedded Compact 7
October 29, 2012	Windows Phone 8
April 14, 2014	Windows Phone 8.1

See also

• History of Microsoft Windows
• Comparison of Microsoft Windows versions
• Microsoft version numbering
• List of Microsoft codenames
• Timeline of DOS operating systems
• History of operating systems
• Timeline of OpenBSD
• Comparison of operating systems
• List of operating systems

External links

• Official Microsoft Windows Website
• Microsoft Windows History Timeline