Microssoft By piñusaxd Period: 1981 to 1981 MS-DOS 1.0 Period: 1982 to 1982 MS-DOS 1.25 Period: 1983 to 1983 MS-DOS 2.0 Period: 1984 to 1984 MS-DOS 3.0 / MS-DOS 3.1 for networks Period: 1985 to 1985 Microsoft Windows 1.0 Period: 1986 to 1986 MS-DOS 3.2 Period: 1987 to 1987 MS-DOS 3.3 Period: 1988 to 1988 MS-DOS 4.0 / MS-DOS 4.01 Period: 1989 to 1989 Microsoft Windows 3.0 Period: 1990 to 1990 MS-DOS 5.0 Period: 1991 to 1991 Microsoft Windows 3.1 / Microsoft Windows for Workgroups 3.1 Period: 1993 to 1993 MS-DOS 6.0 / MS-DOS 6.2 / Microsoft Windows NT 3.1 Period: 1994 to 1994 MS-DOS 6.21 / MS-DOS 6.22 / Microsoft Windows NT 3.5 Period: 1995 to 1995 Microsoft Windows NT 3.51 / Microsoft Windows 95 Period: 1996 to 1996 Microsoft Windows NT 4.0 / Microsoft Windows CE 1.0 Period: 1997 to 1997 Microsoft Windows CE 2.0 Period: 1998 to 1998 Microsoft Windows 98 / Microsoft Windows CE 2.1 Period: 1999 to 1999 Microsoft Windows 98 SE / Microsoft Windows CE 3.0 Period: 2000 to 2000 Microsoft Windows 2000 / Microsoft Windows ME (Millennium) Period: 2000 to 2000 Windows ME Period: 2001 to 2001 Windows XP Period: 2007 to 2007 Windows Vista Period: 2009 to 2009 Windows 7 Period: 2012 to 2012 Windows 8 Period: 2015 to 2015 Windows 10