Office Web Apps Server – KB2592525 Installation failed

I’ve recently updated our company’s internal SharePoint 2010 portal to SharePoint 2013. One difference is that web apps is now a separate installation on another machine. The installation is straight forward and documented on Technet . However, there was on tricky issue. KB2592525 is a prerequisite and the PS New-OfficeWebAppsFarm cmdlet checks if the KB2592525 is installed. I was installing on a Windows Server 2008 R2 SP1 with all the actual patches but KB2592525  was not installed and the KB2592525 installer refused to install on this machine. One way to get around this issue is to force the update using pkgmgr.

  1. Download KB2592525  to folder on your system
  2. Create a new folder called “files”
  3. Extract the MSU: expand Windows6.1-KB2592525-x64.msu –F:* .\files
  4. go to files
  5. Install using Pkgmgr: pkgmgr /ip /

That’s it, and the New-OfficeWebAppsFarm cmdlet will accept this workaround.

About erpcoder
Azure Cloud Architect and Dynamics 365 enthusiast working in Research & Development for InsideAx

12 Responses to Office Web Apps Server – KB2592525 Installation failed

  1. Tom Rimala says:

    Nice one 🙂 Had the same problem, and your solution fixed it.

    • Soren Fleron says:

      Great Thank you very much – was looking for a way. Some said to uninstall a certain KB that comes with windows update, but this works a lot better.
      Best regards Soren

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  4. prasadom says:


    can you pls explain whats the meaning of below:

    expand Windows6.1-KB2592525-x64.msu –F:* .\files

    should i run this command on a command prompt?

  5. Dmitriy says:

    Thanks a lot!
    Very helpful.

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  8. BSOBCZYK says:

    Thanks, its working

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  10. Johne547 says:

    I truly appreciate this post. I’ve been looking all over for this! Thank goodness I found it on Bing. You’ve made my day! Thanks again! akadcdgkebba

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