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everyone.

Have been stumbled upon a very unusual issue - after MS Office installation all web applications (bad practice, i know), including central admin, return a 503 error. Reason is application pools in stopped condition. Any attempt to start up application pool fails.

There are no errors in Sharepoint Logs - only in event viewer. This and this

Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899b8a Faulting module name: KERNELBASE.dll, version: 10.0.14393.2457, time stamp: 0x5b7e2adb Exception code: 0xc06d007e Fault offset: 0x0000000000033c58 Faulting process id: 0x1fcc Faulting application start time: 0x01d63281c5b132ed Faulting application path: c:\windows\system32\inetsrv\w3wp.exe Faulting module path: C:\Windows\System32\KERNELBASE.dll Report Id: ef188be8-b68e-4cbd-b7e3-82279f93967e Faulting package full name: Faulting package-relative application ID:

and this

The Module name SharePoint14Module path C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\isapi\owssvr.dll returned an error from registration. The data is the error.

I looked up a little bit - Enable 32-bit application is set to false, manipulations with ApplicationHost.config doesn't bring anything.

Does anyone have any idea what is source of this troubles?

Thanks in advance!

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It is not supported to install Office on a SharePoint Server. See Hardware and software requirements for SharePoint Server 2016.

You should deploy new SharePoint servers to the farm, migrate service instances, move your DNS record(s) to new FEs, then remove the now broken servers from the farm.

Office installs binaries in the GAC which conflict with the SharePoint binaries.

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  • Thanks for quick response. Well, so adding new server to a farm is sole solution to this problem? There are no other ways? – JuniorPointer May 26 '20 at 7:46
  • There's no other clean ways of getting back to a good state. – Trevor Seward May 26 '20 at 13:55

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