Microsoft Office 2016 fails to install with errors 1603, FC73469E


I am attempting to install Microsoft Office 2016 Pro Plus (classic, not click-to-run)

The installation fails, here is an excerpt from Windows Event Viewer:

Fault bucket 124669380009, type 5
Event Name: OfficeClassicSetup
Response: Not available
Cab Id: 0
Problem signature:

P1: 16.0.4266.1001
P3: 16.0.4266.1001
P4: 1603
P5: Unspecified
P6: FC73469E
P7: 1603

Looking through the event log, I found this line:

'CAInstallLicenses:  Error: Failed to install license. HResult: 0x80070005. '

Following it, there are many variations of this error with a bunch of DLLs:

'07/19/2016 12:57:45.679 [2300]: Assembly Install: Failing with hr=80070005 at RemoveDirectoryAndChildren, line 384
2016/07/19 12:57:45:679::[2780] MSI(INFO): '07/19/2016 12:57:45.679 [2300]: Detailed info about C:\WINDOWS\assembly\tmp\XKNCYCIC\OFFICE.DLL

Error 80070005 appears to be a permissions related issue. I have verified that SYSTEM has full control of C:\Program Files(x86)\Microsoft Office (though not the parent folder) and C:\WINDOWS\assembly.

  • I am running as administrator
  • I have tried this with a "clean boot" so hopefully there's no antivirus blocking anything
  • I am installing Microsoft Office 2016 Pro Plus 32-bit
  • I am running Windows 10 Enterprise 64-bit

Can anyone help with this error? I can post the full installation log upon request.

asked on Super User Jul 19, 2016 by Mystagogue • edited Jul 20, 2016 by Mystagogue

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