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Tuesday, September 6, 2011

Exchange 2010 Update Rollups Breaks OWA

Outlook Web Access broke today after a Windows Update Rollup 4-v2 for Exchange Server 2010 SP1.

Trying to access OWA will get you the following error:

    Outlook Web App didn’t initialize. If the problem continues, please contact your helpdesk.

    Couldn’t find a base theme (folder name=base)

To fix it, open Exchange Management Shell and run the following powershell script:

   C:\Program Files\Microsoft\Exchange Server\V14\Bin\UpdateCas.ps1

1 comment:

  1. Don't forget that Power Shell hates spaces. Easiest way to get around this is to do the commands:

    cd "c:\Program Files"
    cd Microsoft

    etc until you get to the BIN directory then enter the command "UpdateCas.ps1"

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