Faulting application name: EXCEL.EXE, version: 16.0.18324.20168, time stamp: 0x67782fb2
Faulting module name: KERNELBASE.dll, version: 10.0.14393.7513, time stamp: 0x67171aad
Exception code: 0xe0000003
Fault offset: 0x000dd562
Faulting process ID: 0x38a4
Faulting application start time: 0x01db654272c32439
Faulting application path: C:\Program Files (x86)\Microsoft Office\root\Office16\EXCEL.EXE
Faulting module path: C:\windows\System32\KERNELBASE.dll
Report ID: e1abe6f2-19df-44b4-91a1-becb1d3f7fec
Faulting package full name:
Faulting package-relative application ID:

When trying to open Outlook

Really easy workaround if anyone needs a quick fix.

C:\Program Files (x86)\Microsoft Office\root\Office16\react-native-win32.dll

Replace this with a previous version (if previous versions are enabled), if not, grab it from a backup (if you haven’t got backups, that’s on you).

No reboot or sign out needed. Just replace the DLL and away you go.

I tried reinstall\repairing to no Avail.

I checked the latest Office version and found the current version had a new update Update history for Microsoft 365 Apps (listed by date) – Office release notes | Microsoft Learn

I tried to change the Channel back to MonthlyEnterprise

C:\Program Files\Common Files\microsoft shared\ClickToRun>OfficeC2RClient.exe /changesetting Channel=MonthlyEnterprise

However when I ran

C:\Program Files\Common Files\microsoft shared\ClickToRun>officec2rclient.exe /update user

It said the version was already up to date

Looking back at the registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun\Configuration

UpdateChannel was resetting back to the Current Channel URL

http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60

The machine was setup to update via config.office.com

I rolled back the version

However you can change the version manually via the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\cloud\office\16.0\Common\officeupdate Key

Now when I reset the keys

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun\Configuration

UpdateChannel back to http://officecdn.microsoft.com/pr/55336b82-a18d-4dd6-b5f6-9e5095c314a6

and UpdateChannelChanged to True

and ran this

C:\Program Files\Common Files\microsoft shared\ClickToRun>officec2rclient.exe /update user

It downgraded