List of Microsoft operating systems

This is a list of Microsoft written and published operating systems. For the codenames that Microsoft gave their operating systems, see Microsoft codenames. For another list of versions of Microsoft Windows, see, List of Microsoft Windows versions.

Name	Date of release
Windows 1.0	1985-11-20
Windows 2.x	1987-12-09
Windows 3.0	1990-05-22
Windows for Workgroups 3.11	1993-08-11
Windows NT 3.1	1993-10-27
Windows NT 3.5	1994-09-21
Windows NT 3.51	1995-05-30
Windows 95	1995-08-24
Windows NT 4.0	1996-07-31
Windows 98	1998-06-25
Windows 98 SE	1999-05-05
Windows 2000	2000-02-17
Windows Me	2000-09-14
Windows XP	2001-10-25
Windows XP Embedded	2002-01-30
Windows XP Media Center Edition	2002-10-28
Windows XP Tablet PC Edition	2002-11-07
Windows XP 64-bit Edition	2003-03-28
Windows Server 2003	2003-04-24
Windows Small Business Server 2003	2003-10-09
Windows XP Starter	2004-08-11
Windows XP Professional x64 Edition	2005-04-25
Windows Embedded for Point of Service	2005-06-06
Windows Server 2003 R2	2005-12-06
Windows Vista	2007-01-30
Windows Home Server	2007-11-04
Windows Server 2008	2008-02-27
Windows Small Business Server 2008	2008-08-21
Windows Embedded Standard 2009	2008-12-14
Windows Embedded POSReady 2009	2008-12-14
Windows 7	2009-10-22
Windows Server 2008 R2	2009-10-22
Windows Server 2012	2012-09-04
Windows 8	2012-10-26
Windows 8.1	2013-10-17
Windows Server 2012 R2	2013-10-18
Windows CE
AutoPC
Pocket PC
Pocket PC 2000	2000
Pocket PC 2002	2002
Windows 10	2016
Windows 11	2021
Windows Mobile

MS-DOS