List of Windows operating systems

==Personal computer versions==
In this section, a client version of Windows is a version that end-users or OEMs can install on personal computers, including desktop computers, laptops and workstations.
Name 	Version 	Release date 	Codename 	Additional information 	Editions 	Latest build 	Unsupported as of
Windows 1.0x 	Windows 1.0x	Windows 1.0x 	Windows 1.0x 	Windows 1.0x 	Windows 1.0x	Windows 1.0x 	Windows 1.0x
Windows 1.01 	1.01 	November 20, 1985 	Interface Manager 	First public release of Windows 	N/A 	N/A 	December 31, 2001
Windows 1.02 	1.02 	May 14, 1986 	Interface Manager 	 	N/A 	N/A 	December 31, 2001
Windows 1.03 	1.03 	August 21, 1986 	Interface Manager 	 	N/A 	N/A 	December 31, 2001
Windows 1.04 	1.04 	April 10, 1987 	Interface Manager 	 	N/A 	N/A 	December 31, 2001
Windows 2.0x 	Windows 2.0x	Windows 2.0x 	Windows 2.0x 	Windows 2.0x 	Windows 2.0x	Windows 2.0x 	Windows 2.0x
Windows 2.01 	2.01 	December 9, 1987 	 	 	
*Windows/286
*Windows/386	N/A 	December 31, 2001
Windows 2.03 	2.03 	December 9, 1987 	 	 	
*Windows/286
*Windows/386	N/A 	December 31, 2001
Windows 2.1x 	Windows 2.1x	Windows 2.1x 	Windows 2.1x 	Windows 2.1x 	Windows 2.1x	Windows 2.1x 	Windows 2.1x
Windows 2.1 	2.1 	May 27, 1988 	 	 	
*Windows/286
*Windows/386	N/A 	December 31, 2001
Windows 2.11 	2.11 	March 13, 1989 	 	 	
*Windows/286
*Windows/386	N/A 	December 31, 2001
Windows 3.0x 	Windows 3.0x	Windows 3.0x 	Windows 3.0x 	Windows 3.0x 	Windows 3.0x	Windows 3.0x 	Windows 3.0x
Windows 3.00 	3.00 	May 22, 1990 	 	 	N/A 	N/A 	December 31, 2001
Windows 3.00a MME 	3.00a 	October 20, 1991 	 	Sometimes called Windows Graphical Environment with Multimedia Extensions 1.0	N/A 	N/A 	December 31, 2001
Windows 3.1x 	Windows 3.1x	Windows 3.1x 	Windows 3.1x 	Windows 3.1x 	Windows 3.1x	Windows 3.1x 	Windows 3.1x
Windows 3.1 	3.1 	April 6, 1992 	 	 	N/A 	103 	December 31, 2001
Windows for Workgroups 3.1 	3.1 	October 1992 	Kato, Sparta 	 	N/A 	103 	December 31, 2001
Windows 3.11 	3.11 	November 8, 1993 	 	 	N/A 	300 	December 31, 2001
Windows for Workgroups 3.11 	3.11 	August 11, 1993 	Snowball 	 	N/A 	300 	December 31, 2001
Windows 3.2 	3.2 	November 22, 1993 	 	Chinese version of Windows 3.1x 	N/A 	153 	December 31, 2001
Windows 9x 	Windows 9x 	Windows 9x 	Windows 9x 	Windows 9x 	Windows 9x 	Windows 9x 	Windows 9x
Windows 95 	4.0 	August 24, 1995 	Chicago 	 	
*Windows 95
*Windows 95 Service Pack 1/OEM Service Release 1 (February 14, 1996)
*Windows 95 OEM Service Release 2 (August 24, 1996)
*Windows 95 USB Supplement to OEM Service Release 2 (August 27, 1997)
*Windows 95 OEM Service Release 2.1 (August 27, 1997)
*Windows 95 OEM Service Release 2.5 (November 26, 1997)	950 	December 31, 2001
Cancelled 	4.1 	N/A 	Cleveland, Nashville 	 	N/A 	N/A 	
Windows 98 	4.1 	June 21, 1998 	Memphis 	 	N/A 	1998 	July 11, 2006
Windows 98 Second Edition 	4.1 	April 23, 1999 	 	 	N/A 	2222A 	July 11, 2006
Windows Me 	4.9 	September 14, 2000 	Millennium 	 	N/A 	3000 	July 11, 2006
Windows NT 	Windows NT 	Windows NT 	Windows NT 	Windows NT 	Windows NT 	Windows NT 	Windows NT
Windows NT 3.1 	NT 3.1 	July 27, 1993 	Razzle 	 	
*Windows NT 3.1 Workstation	528 (SP3) 	December 31, 2001
Windows NT 3.5 	NT 3.5 	September 21, 1994 	Daytona 	 	
*Windows NT 3.5 Workstation	807 	December 31, 2001
Windows NT 3.51 	NT 3.51 	May 30, 1995 	Daytona 	 	
*Windows NT 3.51 Workstation	1057.6 (SP5) 	December 31, 2001
Windows NT 4.0 	NT 4.0 	August 24, 1996 	Shell Update Release 	 	
*Windows NT 4.0 Workstation	1381.7097 (SP6a) 	December 3, 2004
Windows 2000 	NT 5.0 	February 17, 2000 	 	 	
*Windows 2000 Professional	2195.6717 (SP4) 	July 13, 2010
Windows XP 	NT 5.1 	October 25, 2001 	Whistler 	 	
*Windows XP Starter Edition
*Windows XP Home Edition
*Windows XP Professional
*Windows Fundamentals for Legacy PCs (July 8, 2006)	2600.5512 (SP3) 	April 8, 2014
Windows XP Professional x64 Edition	NT 5.2 	April 25, 2005 	 	 	N/A 	3790.3959 (SP2) 	April 8, 2014
Windows Vista 	NT 6.0 	January 30, 2007 	Longhorn 	 	
*Windows Vista Starter
*Windows Vista Home Basic
*Windows Vista Home Premium
*Windows Vista Business
*Windows Vista Enterprise
*Windows Vista Ultimate	6002 (SP2) 	April 11, 2017
Windows 7 	NT 6.1 	October 22, 2009 	Windows 7 	 	
*Windows 7 Starter
*Windows 7 Home Basic
*Windows 7 Home Premium
*Windows 7 Professional
*Windows 7 Enterprise
*Windows 7 Ultimate
*Windows Thin PC	7601 (SP1) 	January 14, 2020
Windows 8 	NT 6.2 	October 26, 2012 	Windows 8 	 	
*Windows 8
*Windows 8 Pro
*Windows 8 Enterprise	9200 	January 10, 2023
Windows 8.1 	NT 6.3 	October 17, 2013 	Blue 	 	
*Windows 8.1
*Windows 8.1 Pro
*Windows 8.1 Enterprise
*Windows 8.1 with Bing	9600 	January 10, 2023
Windows 10 	NT 10.0 	July 29, 2015 (1507)November 10, 2015 (1511)August 2, 2016 (1607)April 5, 2017 (1703)October 17, 2017 (1709)April 30, 2018 (1803)November 13, 2018 (1809)May 21, 2019 (1903)November 12, 2019 (1909)May 27, 2020 (2004)	Threshold (1507)Threshold 2 (1511)Redstone (1607)Redstone 2 (1709)Redstone 3 (1709)Redstone 4 (1803)Redstone 5 (1809)19H1 (1903)19H2 (1909)20H1 (2004)20H2 (20H2)21H1 (21H1)	 	
*Windows 10 Home
*Windows 10 Pro
*Windows 10 Pro Education
*Windows 10 Pro for Workstations
*Windows 10 Enterprise
*Windows 10 Enterprise LTSC (formerly LTSB)
*Windows 10 Education
*Windows 10 IoT Core
*Windows 10 IoT Enterprise
*Windows 10 S (now an operational mode within Enterprise and Education)	10240 (1507)10586 (1511)14393 (1607)15063 (1703)16299 (1709)17134 (1803)17763 (1809)18362.116 (1903)18363.418 (1909)19041.208 (2004)	October 14, 2025
==Server versions==
Name 	Version	Release date 	Codename 	Additional information 	Editions 	Latest build 	Unsupported as of
Windows NT 3.1 	NT 3.1 	July 27, 1993 	Razzle 	 	
*Windows NT 3.1 Advanced Server	528 (SP3) 	December 31, 2001
Windows NT 3.5 	NT 3.5 	September 20, 1994	Daytona 	 	
*Windows NT 3.5 Server	807 	December 31, 2001
Windows NT 3.51 	NT 3.51	May 29, 1995 	 	
*Windows NT 3.51 Server 	1057.6 (SP5)	 	December 31, 2001
Windows NT 4.0 	NT 4.0 	July 29, 1996 	Shell Update Release	 	
*Windows NT 4.0 Server
*Windows NT 4.0 Enterprise Server
*Windows NT 4.0 Terminal Server	1381.7097 (SP6a)	December 3, 2004
Windows 2000 Server 	NT 5.0 	February 17, 2000 	 	 	
*Windows 2000 Advanced Server
*Windows 2000 Datacenter Server	2195.6717 (SP4) 	July 13, 2010
Windows Server 2003 	NT 5.2 	April 24, 2003 	Whistler Server 	 	
*Windows Server 2003, Standard Edition
*Windows Server 2003, Enterprise Edition
*Windows Server 2003, Datacenter Edition
*Windows Server 2003, Web Edition
*Windows Storage Server 2003
*Windows Small Business Server 2003	3790.3959 (SP2) 	July 14, 2015
Windows Server 2003 R2	NT 5.2 	December 6, 2005 	 	An updated version of Windows Server 2003.	
*Windows Server 2003 R2, Standard Edition
*Windows Server 2003 R2, Enterprise Edition
*Windows Server 2003 R2, Datacenter Edition
*Windows Storage Server 2003 R2
*Windows Small Business Server 2003 R2
*Windows Compute Cluster Server 2003	3790.2075 	July 14, 2015
Windows Server 2008 	NT 6.0 	February 27, 2008 	Longhorn Server 	A server counterpart of Windows Vista. 	
*Windows Server 2008 Standard
*Windows Server 2008 Enterprise
*Windows Server 2008 Datacenter
*Windows Server 2008 Foundation
*Windows Essential Business Server 2008
*Windows HPC Server 2008
*Windows Small Business Server 2008
*Windows Storage Server 2008
*Windows Server 2008 Web	6003 (SP2) 	January 14, 2020
Windows Server 2008 R2	NT 6.1 	October 22, 2009 	Server 7 	 	
*Windows Server 2008 R2 Foundation
*Windows Server 2008 R2 Standard
*Windows Server 2008 R2 Enterprise
*Windows Server 2008 R2 Datacenter
*Windows Server 2008 R2 Web
*Windows Storage Server 2008 R2
*Windows HPC Server 2008 R2
*Windows Small Business Server 2011
*Windows Home Server 2011
*Windows MultiPoint Server 2010
*Windows MultiPoint Server 2011	7601 (SP1) 	January 14, 2020
Windows Server 2012 	NT 6.2 	September 4, 2012 	Server 8 	 	
*Windows Server 2012 Foundation
*Windows Server 2012 Essentials
*Windows Server 2012 Standard
*Windows Server 2012 Datacenter
*Windows MultiPoint Server 2012	9200 	October 10, 2023
Windows Server 2012 R2	NT 6.3 	October 17, 2013 	Server Blue 	 	
*Windows Server 2012 R2 Foundation
*Windows Server 2012 R2 Essentials
*Windows Server 2012 R2 Standard
*Windows Server 2012 R2 Datacenter	9600 	October 10, 2023
Windows Server 2016 	NT 10.0	October 12, 2016 	Threshold 	 	
*Windows Server 2016 Essentials
*Windows Server 2016 Standard
*Windows Server 2016 Datacenter	14393 	January 12, 2027
Windows Server 2019 	NT 10.0	November 13, 2018 	Redstone 5 	 	
*Windows Server 2019 Essentials
*Windows Server 2019 Standard
*Windows Server 2019 Datacenter	17763 	January 9, 2029
==Device versions==
===Appliances===
Name 	Version	Release date 	Codename 	An edition of	Additional information	Sold with
Windows XP Media Center Edition	NT 5.1 	2002, 2004, 2005 	Freestyle (2002)Harmony (2004)Symphony (2005)	Windows XP 	 	Home theater PCs, network attached storage (NAS) and set-top boxes
Windows XP Tablet PC Edition 	NT 5.1 	November 2002, August 2004	Mira (2002)Lonestar (2005) 	Windows XP 	 	Microsoft Tablet PC
Windows RT 	NT 6.2 	October 26, 2012 	Windows on ARM 	Windows 8 	 	ARM-based tablet computers
Windows RT 8.1 	NT 6.3 	October 18, 2013 	RT Blue 	Windows 8.1 	 	ARM-based tablet computers
===Mobile devices===
Mobile devices include smartphones, handheld tablet computers, and personal digital assistants
*Windows 10
**Windows 10 Mobile
**Windows 10 Mobile Enterprise
**Windows 10 IoT Mobile
**Windows 10 IoT Mobile Enterprise
*Windows Phone
**Windows Phone 8.1
**Windows Phone 8
**Windows Phone 7.8
**Windows Phone 7.5
**Windows Phone 7
*Windows Mobile
**Windows Mobile 6.5
**Windows Mobile 6.1
**Windows Mobile 6.0
**Windows Mobile 5.0
**Windows Mobile 2003 Second Edition
**Windows Mobile 2003
**Pocket PC 2002
**Pocket PC 2000
===Embedded devices===
*Windows Embedded
**Windows Embedded 8.1
**Windows Embedded 8
**Windows Embedded 7
**Windows Embedded Automotive
**Windows Embedded Industry
**Windows Embedded 2009
**Windows XP Embedded
**Windows NT 4.0 Embedded – Abbreviated NTe, it is an edition of Windows NT 4.0 that was aimed at computer-powered major appliances, vending machines, ATMs and other devices that cannot be considered computers per se. It is the same system as the standard Windows NT 4.0, but it comes packaged in a database of components and dependencies, from which a developer can choose individual components to build customized setup CDs and hard disk boot images. Windows NT 4.0 Embedded includes Service Pack 5. 
*Windows Embedded Compact
**Windows Embedded Compact 2013
**Windows Embedded Compact 7
**Windows Embedded CE 6.0 (2006)
**Windows CE 5.0 (2005), with a version for smartphones and PDAs sold as Windows Mobile 5.0
**Windows CE 4.2 (2004), with a version for smartphones and PDAs sold as Windows Mobile 2003 SE
**Windows CE 4.1 (2003), with a version for smartphones and PDAs sold as Windows Mobile 2003
**Windows CE 4.0 (2002), with a version for smartphones and PDAs sold as Pocket PC 2002
**Windows CE 3.0 (June 2000), with a version for smartphones and PDAs sold as Pocket PC 2000
**Windows CE 2.12 (August 1999)
**Windows CE 2.11 (October 1998)
**Windows CE 2.1 (July 1998)
**Windows CE 2.0 (September 1997)
**Windows CE 1.0 (November 1996)
===Dual screen devices===
*Windows 10X
==Cancelled versions==
*Windows Mobile 7 or Photon - originally a successor of Windows Mobile, it had been scrapped for Windows Phone 7 with Metro UI.
*Microsoft Neptune (December 27, 1999) – the first planned version of Microsoft Windows NT to have a consumer edition variant, based on the Windows 2000 codebase. A version was sent out to testers but was never released.
*Microsoft Cairo (February 29, 1996) – a "true object-oriented OS", planned after Windows NT 4.0.
*Microsoft Midori (2003) – codename for a managed code operating system.
Category:Technology