Microsoft Windows/Canceled

==Microsoft Cairo==
===1993–1996===
Microsoft Cairo (transparent).png|Alternate version
Microsoft Cairo was the codename for an unreleased software project by Microsoft. It was intended to bring next-generation technologies to Windows NT. It was planned as a successor to Windows NT 3.1 but Microsoft later cancelled that project in 1996.
==Windows 96 (Microsoft Nashville)==
===1996===
Windows 96, also known as Microsoft Nashville, was the codename for a cancelled released of an update to Windows 95. It was intended as a minor release, focusing on tighter integration with Windows and Internet Explorer, in order to compete with Netscape Navigator. This project was scrapped in favor of a new project under the codename "Memphis", later known as Windows 98.
==Microsoft Neptune==
===1999===
Microsoft Neptune was the codename for the next version of Windows under development in 1999. Microsoft Neptune was based on Windows 2000 and it was designed for consumers, replacing the Windows 9x series. This project was shelved as Microsoft merged the team working on Neptune with that team developing for Windows Odyssey. The combined team worked on a new project codenamed "Whistler", later known as Windows XP. Some features and elements from Windows Neptune can now be found on Windows XP Home Edition.
==Windows Odyssey==
===1999===
There was never a build of Odyssey ever made so a logo cannot be confirmed for Odyssey. Although Neptune and Odyssey were to be released at the same time, only one build of Neptune was ever made while Odyssey never made it off the planning board.
Windows Odyssey was the codename for the next version of Windows. This was made as a successor to Windows 2000 but it was also scrapped as Microsoft merged the team working for Odyssey with the other team developing on Neptune to work on a new project codenamed "Whistler", later known as Windows XP. Some features and elements from Windows Odyssey can now be found on Windows XP Professional.
==Windows Blackcomb==
===2002–2003===
Blackcomb was the codename for a version of Microsoft Windows originally meant to be released in the second half of 2002 as a successor to Windows XP.Betawiki
==Project Polaris OS and Project Andromeda OS==
===2018===
Polaris OS was being made as a more modern and lightweight OS that is similar to Chrome OS, it was designed to replace Windows 10 S and it was aimed towards desktops and laptops, while Andromeda OS was made as a successor to Windows 10 Mobile and it was meant to be a mobile OS for Surface Duo. Both version of Windows Core OS were later cancelled and superseded by development on Windows 10X, while Microsoft decided to use Android for its Surface Duo smartphones with its own Microsoft Launcher and Microsoft apps preinstalled. On January 2, 2021, one of its early builds of Polaris was leaked online, and later on January 22, 2022, Windows Central got a prototype device of Lumia 950 running on unknown build of Andromeda OS.
*Windows Polaris build 16299.241 - BetaWiki
*This is Microsoft's canceled Andromeda OS running on a Lumia 950 - Windows Central
==Windows 10X (Project Santorini)==
===2020–2021===
Windows 10X (codenamed Santorini) was an unreleased edition of Windows 10, based on Windows Core OS. The logo is more rounded off and has multiple colors to fit with the new design. Elements of this logo was later used in Windows 11's 3D logo. Microsoft planned to make a new version of Windows aimed towards premium laptops with dual screens or foldable screens such as the cancelled Surface Neo and Lenovo ThinkPad X1 Fold but in 2020, it was made to be compatible with single-screen, low-end laptops in order to compete with the likes of Chromebooks and it was designed for educational markets.
The project was shelved in 2021, with Microsoft instead deciding to keep their focus on the primary Windows operating systems. Some UI elements from Windows 10X including the taskbar can be found on Windows 11. Also, its effort for low-end laptops for educational markets was later implemented to a new edition of Windows 11 called Windows 11 SE.
==Windows Factory OS ==
===2021 (OEMs only)===
The logo is based on the Windows 11 logo, but in a form of a cube, and it's used as a UEFI boot screen logo and as an icon for Factory Orchestrator app. This OS is a lightweight version of Windows 11, being released only to OEMs and computer manufacturers to be used for testing out its newly-manufactured hardware for certain Windows 11 features, and its drivers before deploying. This version is never meant to be released to the public.
*Windows Factory OS - BetaWiki
*Factory OS | Microsoft Docs
*Creating a FactoryOS image (+overview) - YouTube
==References==
Category:Windows
Category:Microsoft
Category:Subpages
Category:Unreleased
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