Microsoft Windows operating system:

• Windows 11, released in 2021
• Windows 10, released in 2015
• Windows 8.1, released in 2013
• Windows 8, released in 2012
• Windows 7, released in 2009
• Windows Vista, released in 2007
• Windows XP Professional x64 Edition, released in 2005
• Windows XP, released in 2001
• Windows ME, released in 2000
• Windows 2000, released in 2000
• Windows 98, released in 1998
• Windows NT 4.0, released in 1996
• Windows 95, released in 1995
• Windows NT 3.51, released in 1995
• Windows NT 3.5, released in 1994
• Windows 3.2, released in 1993
• Windows NT 3.1, released in 1993
• Windows 3.1, released in 1992
• Windows 3.0, released in 1990
• Windows 2.1x, released in 1988
• Windows 2.0, released in 1987
• Windows 1.0, released in 1985

Server versions

• Windows Server 2022
• Windows Server 2019
• Windows Server 2016
• Windows Server 2012 (R2)
• Windows Server 2008 (R2)
• Windows Server 2003 (R2)
• Windows 2000 Server
• Windows NT 4.0
• Windows NT 3.51
• Windows NT 3.5
• Windows NT 3.1