Windows 11 Enterprise build 22000.194 issues with Office 2019 and 2021

New Contributor

Have just loaded up Windows 11 Enterprise build 22000.194 on my laptop


Office 2019 Pro Plus installs ok but none of the apps will open. Outlook will refuse to open at all in normal mode always prompting you to start in Safe Mode, which it still fails to do:


Faulting module name: mso98win32client.dll, version:, time stamp: 0x606d1067
Exception code: 0xc0000005
Fault offset: 0x00039b98
Faulting process ID: 0x3c54
Faulting application start time: 0x01d7baf73cec952d
Faulting application path: C:\Program Files (x86)\Microsoft Office\root\Office16\OUTLOOK.EXE
Faulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office16\mso98win32client.dll
Report ID: d8c5b36d-de42-42a8-a8f5-9f7b2b96b598
Faulting package full name:
Faulting package-relative application ID:



Office 2021 Pro Plus installs ok and all the apps open - however i cannot open Signatures in Outlook, it crashes it and closes it down:

Either by going to Options -> Signatures or by inserting a signature into a new email from the Insert ribbon menu


Faulting application name: OUTLOOK.EXE, version: 16.0.14326.20454, time stamp: 0x6147b31b
Faulting module name: wwlib.dll, version: 16.0.14326.20454, time stamp: 0x61496115
Exception code: 0xc0000005
Fault offset: 0x00000000018d8bce
Faulting process ID: 0x2218
Faulting application start time: 0x01d7bb5355b5da2a
Faulting application path: C:\Program Files\Microsoft Office\Root\Office16\OUTLOOK.EXE
Faulting module path: C:\Program Files\Microsoft Office\Root\Office16\wwlib.dll
Report ID: 84f107d8-85b2-432b-b7bc-c78a3cdb567d
Faulting package full name:

1 Reply
best response confirmed by mrast27 (New Contributor)

Just to say i got this sorted - dont know what it is but there is an issue with the Pro Plus 2021 en-gb language version.


Installing the en-us language version and signatures now work fine and dont crash outlook.