Install_Msxml6_Cpu32_Action failed when installing SQL Server 2008

hfare One of my friends was trying to setup a TFS 2010 environment, which requires SQL Server 2008 or above versions. We came across a SQL Server 2008 RTM bug, so I’m posting its description here so that other folks can work around it too.


The installation wizard of SQL Server 2008 fails at the point of starting the SQL Server browser service. In the detailed installation log of SQL Server, which locates in %ProgramFiles%\Microsoft SQL Server\100\Setup Bootstrap\LOG\, there are error messages like the following. See How to: View SQL Server Setup Log Files for more information about log location.

2009-07-01 16:19:19 Slp: Checkpoint: INSTALL_MSXML6_CPU32_ACTION
2009-07-01 16:19:19 Slp: Completed Action: Install_Msxml6_Cpu32_Action, returned False
2009-07-01 16:19:19 Slp: Error: Action "Install_Msxml6_Cpu32_Action" failed during execution.
2009-07-01 16:19:19 Slp: Action "Install_sql_engine_core_shared_Cpu32_Action" will return false due to the following conditions:


This is a SQL Server 2008 RTM installation bug. The installation wizard has a conflict with MSXML6 SP2 (KB954459).


  1. Remove KB954459
  2. Uninstall SQL Server 2008.
  3. Reboot  the computer.
  4. Install SQL Server 2008.


10000 August 6, 2009 at 1:06 AM

Really good information.
I successfully installed SQL Server 2008 on my system.
Thanks a lot!

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Irina September 14, 2009 at 5:09 AM

Many many thanks!

Marco Bessone April 13, 2010 at 4:54 AM

great. :)

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Anonymous May 11, 2010 at 8:27 AM

Worked like a charm. Took me a day to find this solution. Bill Wang's blog just got a bookmark!


FractalizeR September 7, 2010 at 6:31 AM

There is no need to uninstall SQL Server. Just MSXML6.

Magento Themes December 3, 2010 at 2:02 PM

how to remove this one KB954459, I have kind of problem in my window.

Anonymous July 22, 2011 at 5:16 AM

well done, i was working on this for a day and was driving mad!

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