2000

--> on january 4th at ces bill gates announces the new version windows ce will be called pocket pc.

--> microsoft windows 2000 was released february 17,2000

--> microsoft windows me (millennium) released june 19,2000
2003

--> microsoft windows server 2003 is released march 28,2003

--> microsoft windows xp media center edition 2003 is released on december 18, 2003

--> microsoft windows xp 64-bit edition (version 2003) for itanium 2 systems is released on march 28,2003
2001
--> microsoft windows xp is released october 25, 2001.

--> microsoft windows xp 64-bit edition (version 2002) for itanium systems is released march 28,2003
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, codenamed "longhorn" will be named windows vista on july 23, 2005.

2006 --> microsoft release microsoft windows vista to corporations on november 30, 2006.

2007 --> microsoft release microsoft windows vista and office 2007 to the general public january 30, 2007.

2009 --> microsoft release windows 7 october 22, 2009.