Microsoft Windows history

Updated: 05/21/2018 by Computer Hope
See the codename definition for a listing of Microsoft codenames.
MS-DOS history.
Year Event
1983 Bill Gates announces Microsoft Windows on November 10, 1983.
1985 Microsoft Windows 1.0 is introduced on November 20, 1985, and is initially sold for $100.00.
1987 Microsoft Windows 2.0 was released on December 9, 1987, and is initially sold for $100.00.
1987 Microsoft Windows/386 or Windows 386 is introduced on December 9, 1987, and is initially sold for $100.00.
1988 Microsoft Windows/286 or Windows 286 is introduced in June 1988, and is initially sold for $100.00.
1990 Microsoft Windows 3.0 was released on May, 22 1990. Microsoft Windows 3.0 full version was priced at $149.95 and the upgrade version was priced at $79.95.
1991 Following its decision not to develop operating systems cooperatively with IBM, Microsoft changes the name of OS/2 to Windows NT.
1991 Microsoft Windows 3.0 or Windows 3.0a with multimedia was released in October 1991.
1992 Microsoft Windows 3.1 was released in April 1992 and sells more than one million copies within the first two months of its release.
1992 Microsoft Windows for Workgroups 3.1 was released in October 1992.
1993 Microsoft Windows NT 3.1 was released on July 27, 1993.
1993 Microsoft Windows 3.11, an update to Windows 3.1 is released on December 31, 1993.
1993 The number of licensed users of Microsoft Windows now totals more than 25 million.
1994 Microsoft Windows for Workgroups 3.11 was released in February 1994.
1994 Microsoft Windows NT 3.5 was released on September 21, 1994.
1995 Microsoft Windows NT 3.51 was released on May 30, 1995.
1995 Microsoft Windows 95 was released on August 24, 1995, and sells more than one million copies within 4 days.
1995 Microsoft Windows 95 Service Pack 1 (4.00.950A) is released on February 14, 1996.
1996 Microsoft Windows NT 4.0 was released on July 29, 1996.
1996 Microsoft Windows 95 (4.00.950B) aka OSR2 with FAT32 and MMX support is released on August 24, 1996.
1996 Microsoft Windows CE 1.0 was released in November 1996.
1997 Microsoft Windows CE 2.0 was released in November 1997.
1997 Microsoft Windows 95 (4.00.950C) aka OSR2.5 is released on November 26, 1997.
1998 Microsoft Windows 98 was released in June 1998.
1998 Microsoft Windows CE 2.1 was released in July 1998.
1998 In October 1998, Microsoft announced that future releases of Windows NT would no longer have the initials of NT and that the next edition would be Windows 2000.
1999 Microsoft Windows 98 SE (Second Edition) was released on May 5, 1999.
1999 Microsoft Windows CE 3.0 was released in 1999.
2000 On January 4th at CES, Bill Gates announces the new version of Windows CE will be called Pocket PC.
2000 Microsoft Windows 2000 is released on February 17, 2000.
2000 Microsoft Windows ME (Millennium) is released on June 19, 2000.
2001 Microsoft Windows XP is released on October 25, 2001.
2001 Microsoft Windows XP 64-Bit edition (Version 2002) for Itanium systems is released on March 28, 2003.
2003 Microsoft Windows Server 2003 is released on March 28, 2003.
2003 Microsoft Windows XP 64-Bit edition (Version 2003) for Itanium 2 systems is released on March 28, 2003.
2003 Microsoft Windows XP Media Center edition 2003 is released on December 18, 2003.
2004 Microsoft Windows XP Media Center edition 2005 is released on October 12, 2004.
2005 Microsoft Windows XP Professional x64 edition is released on April 24, 2005.
2005 Microsoft announces it's next operating system, code-named "Longhorn" will be named Windows Vista on July 23, 2005.
2006 Microsoft releases Microsoft Windows Vista to corporations on November 30, 2006.
2007 Microsoft releases Microsoft Windows Vista and Office 2007 to the general public on January 30, 2007.
2008 Microsoft releases Microsoft Windows Server 2008 to the public on February 27, 2008.
2009 Microsoft releases Windows 7 on October 22, 2009.
2012 Microsoft releases Windows Server 2012 on September 4, 2012.
2012 Microsoft releases Windows 8 on October 26, 2012.
2015 Microsoft releases Windows 10 on July 29, 2015.

Computer History