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I am setting up my Office Web Apps 2013 server on Windows Server 2012 R2.

According Deploy Office Web Apps Server, I installed

  • .NET Framework (but installer said the equivalent or later version is already installed)
  • Windows Features suggested

Then I start installing Office Web Apps, but it fails with error message that require me to install .Net Framework 4.5.

Any help will be appreciated.

Thanks,

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If you have .NET 4.6 installed, uninstall it and re-install .NET 4.5. Then try the WAC install again. You can upgrade to .NET 4.6 afterwards.

  • I need to install .NET 4.5.2 BEFORE installing .NET 4.6 and even running windows update. – user48851 Feb 9 '16 at 2:36
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Install is blocked until removal the update for Microsoft Windows (KB3102467) and restarting the server...

Control Panel > Programs > Programs and Features > Installed Updates > search for KB3102467 > click uninstall

Also, the only documentation I found was from an exchange team blog to repair the 4.5.2 installation after the uninstall of 4.6.1. You will need the offline version of 4.5.2 in order to repair...

-Ivan

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