Lync 2013 Cumulative Update Installer Error



Background:  There are many websites offering advice on how to resolve errors installing the Windows Fabric Update for Microsoft Lync server:





I offer this solution because it was unique to my situation.  Hopefully it helps someone else.

Error:  There were errors during the installation process.  For details, see the log file at c:\LyncMedia\Lync_patching-LYNC   




Solution:  Search the Ocscore.msp…_log.txt for the key word "error":  



     MSI (s) (54!44) [21:37:26:570]: Creating MSIHANDLE (3185) of type 790531 for thread 2884
     CAQuietExec:  file C:\Program Files\WindowsFabric\bin\Fabric\Fabric.Code.1.0\StopLyncServicesAndWait.ps1 is not digitally signed.
     MSI (s) (54!44) [21:37:26:570]: Creating MSIHANDLE (3192) of type 790531 for thread 2884
     CAQuietExec:      + FullyQualifiedErrorId : UnauthorizedAccess


GPO that prevents unsigned PowerShell from running was mucking up the install!!  If someone from Microsoft reads this blog: Please ensure all Microsoft patches and PowerShell scripts are signed!!

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