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As you probably know, Windows Server 2003 has (finally) reach its end-of-life. For the Windows 2003 Server family the critical dates were the following:

  • On July 13, 2010 Mainstream Support for Windows Server 2003 family ended.
  • On July 14, 2015 Extended Support for Windows Server 2003 family will end.

So one year after the Microsoft Windows XP (and Office 2003) retirement, now it’s the turn of the Windows Server 2003 (and of course the R2 version) operating system family, after 12 years!

Microsoft LogoMicrosoft’s exact cut-off date for supporting Windows Server 2003 is July 14, 2015, which will focus administrators minds on updating any remaining machines running the operating system for servers or to move a workload to the cloud.

Also next year will be the year of Windows Server 2016 (with a lot of new features) making the gap of releases really huge (5 different releases after Windows Server 2003 R2!).

But actually the change has already been driven by the application layer: most of applications require a 64 bit OS and serveral of them have removed the Windows Server 2003 support. So it’s already done the migration? Not really!

Microsoft has estimated that there may be between as many as 20 million copies of Windows Server 2003 are still running (and still there are some Windows XP!). With the obvious security risks and a real need of a upgrade (or, in a more realistic way, a refresh and migration) plan.

On the client side, next involved operating systems will be:

Client operating systems Latest update or service pack End of mainstream support End of extended support

Windows XP

April 14, 2009

Windows Vista

April 10, 2012

April 11, 2017

Windows 7

January 13, 2015

January 14, 2020

Windows 8

January 9, 2018

January 10, 2023

For the server operating systems:

Server operating systems Latest update or service pack End of mainstream support End of extended support

Windows Server 2003

July 13, 2010

July 14, 2015

Windows Server 2003 R2

April 10, 2012

April 11, 2017

Windows Server 2008

January 13, 2015

January 14, 2020

Windows Server 2008 R2

January 13, 2015

January 14, 2020

Windows Server 2012

January 9, 2018

January 10, 2023

Windows Server 2012 R2

January 9, 2018

January 10, 2023

See also:

Andrea MauroAbout Andrea Mauro (2532 Posts)

Virtualization & Cloud Architect.
VMUG IT Co-Founder and board member. VMware VMTN Moderator and vExpert (2010, 2011, 2012, 2013, 2014, 2015). PernixPro 2014. Dell TechCenter Rockstar 2014. MVP 2014.
Several certifications including: VCDX-DCV, VCP-DCV/DT/Cloud, VCAP-DCA/DCD/CIA/CID/DTA/DTD, MCSA, MCSE, MCITP, CCA, NPP.


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