Complete List of Microsoft OS Operating Systems

Before Windows

• Xenix
• MS-DOS
  • SB-DOS
  • COMPAQ-DOS
  • NCR-DOS
  • Z-DOS
  • 86-DOS
• MSX-DOS
• MS-DOS OPSYST

Windows

Main article: List of Microsoft Windows versions

See also: Microsoft Windows

• Windows 1.0
• Windows 2.0
• Windows 3.x
• Windows 95
• Windows 98
• Windows ME

Windows NT line

Further information: Windows NT

• Windows NT 3.1
• Windows NT 3.5
• Windows NT 3.51
• Windows NT 4.0
• Windows 2000
  • Professional
  • Server
  • Advanced Server
  • Datacenter Server
• Windows XP (full details)
  • Starter Edition (16 editions for each of 16 countries)
  • Home Edition
  • Home Edition N (European market)
  • Home Edition K (South Korean market)
  • Home Edition KN (South Korean market)
  • Home Edition for Subscription Computers
  • Home Edition for Prepaid Computers
  • Professional Edition
  • Professional Edition N (European market)
  • Professional Edition K (South Korean market)
  • Professional Edition KN (South Korean market)
  • 64-bit Edition
  • Professional x64 Edition
  • Media Center Edition
  • Tablet PC Edition
  • XP for Embedded Systems
  • XP Embedded
  • Embedded for Point of Service
  • Windows Fundamentals For Legacy PCs
• Windows Server 2003
  • Small Business Server
  • Web Edition
  • Standard Edition
  • Enterprise Edition
  • Datacenter Edition
  • Storage Server
  • Windows Home Server
• Windows Vista (full details)
  • Starter
  • Home Basic
  • Home Basic N (European market)
  • Home Premium
  • Business
  • Business N (European market)
  • Enterprise
  • Ultimate
• Windows Server 2008
  • Web Server
  • Standard Edition
  • Enterprise Edition
  • Datacenter Edition
  • for Itanium-based Systems
• Windows 7 (full details)
  • Starter
  • Home Basic
  • Home Premium
  • Home Premium N (European market)
  • Professional
  • Professional N (European market)
  • Enterprise
  • Ultimate
  • Ultimate N (European market)
• Windows Server 2008 R2
  • Web Server
  • HPC Server
  • Standard Edition
  • Enterprise Edition
  • Datacenter Edition
  • for Itanium-based Systems
• Windows 8 (full details)
  • RT (ARM architecture)
  • Core
  • Core N (European market)
  • Pro
  • Pro N (European market)
  • Enterprise
  • Enterprise N (European market)
• Windows Server 2012
  • Foundation Edition
  • Essentials Edition
  • Standard Edition
  • Datacenter Edition

Windows Mobile computing

• Windows
• Windows Mobile
• Microsoft Windows Mobile 2003 Second Edition
• Microsoft Windows Mobile 2005
• Windows CE 4.0
• Windows CE 5.0
• Windows Mobile 6
• Windows Mobile 6.5

Xbox gaming

• Xbox system software
• Xbox 360 system software
• Xbox One system software

Other operating systems in development

• Singularity (operating system)
• Windows Phone
• MIDAS (operating system)
• Zune

Never eventuated

Windows

• Windows Neptune
• Windows NT 5.0
• Windows Nashville
• Windows Whistler
• Windows LongHorn
• Windows Memphis
• Windows Millennium
• Windows X

OS/2

• MS OS/2 2.0
• MS OS/2 3.0
• MS OS/2 4.0

Other

• Cairo