List of Microsoft Windows versions

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.

Mobile devices
Mobile devices include smartphones, handheld tablet computers, and personal digital assistants
 * Windows 2020
 * Windows 2020 Mobile
 * Windows 2020 Mobile Enterprise
 * Windows 2020 IoT Mobile
 * Windows 2020 IoT Mobile Enterprise
 * Windows 10
 * Windows 10 Mobile
 * Windows 10 Mobile Enterprise
 * Windows 10 IoT Mobile
 * Windows 10 IoT Mobile Enterprise
 * Windows 9
 * Windows 9 Mobile
 * Windows 9 Mobile Enterprise
 * Windows Phone
 * Windows Phone 8.2
 * Windows Phone 8.11
 * Windows Phone 8.1
 * Windows Phone 8
 * Windows Phone 7.8
 * Windows Phone 7.5
 * Windows Phone 7.1
 * Windows Phone 7
 * Windows Mobile
 * Windows Mobile 6.5
 * Windows Mobile 6.1
 * Windows Mobile 6.0
 * Windows Mobile 5.1
 * Windows Mobile 5.0
 * Windows Mobile 2003 Third Edition
 * Windows Mobile 2003 Second Edition
 * Windows Mobile 2003
 * Pocket PC 2002
 * Pocket PC 2001
 * Pocket PC 2000

Embedded devices

 * Windows Embedded
 * Windows Embedded 9
 * Windows Embedded 8.11
 * Windows Embedded 8.1
 * Windows Embedded 8
 * Windows Embedded 7.1
 * 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. Before 1998, it used to be called Windows NT 4.1.
 * Windows Embedded Compact
 * Windows Embedded Compact 2013
 * Windows Embedded Compact 7.1
 * Windows Embedded Compact 7
 * Windows Embedded CE 6.1 (2007)
 * Windows Embedded CE 6.0 (2006)
 * Windows CE 5.1 (2006), with a version for smartphones and PDAs sold as Windows Mobile 5.1
 * Windows CE 5.0 (2005), with a version for smartphones and PDAs sold as Windows Mobile 5.0
 * Windows CE 4.3 (2005), with a version for smartphones and PDAs sold as Windows Mobile 2003 TE
 * 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 3.1 (2001), with a version for smartphones and PDAs sold as Pocket PC 2001
 * Windows CE 3.0 (June 2000), with a version for smartphones and PDAs sold as Pocket PC 2000
 * Windows CE 2.13 (January 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 2020X

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.