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Carmine89's avatar
Carmine89
Copper Contributor
Nov 03, 2025

Outlook broke after Office 365 update to 16.0.19328.20158 – cannot open emails Windows Server 2016

Hello everyone,
posting to report that after the latest automatic update to Microsoft Office 365 version 16.0.19328.20158, we are experiencing a critical issue on multiple company machines running Windows Server 2016:

  • The Outlook desktop application launches normally, but when trying to open any email, the following error appears:
    “There was a problem opening this item... The text formatting command is not available... Reinstall Microsoft Outlook.”
  • Launching Outlook in safe mode (Outlook /safe) does not help.
  • Creating the FORMS2 folder (suggested workaround) does not fix it.
  • Attempting a downgrade via OfficeC2RClient.exe fails with error 30183-27 (400).
  • Quick/online repair from Control Panel also has no effect.

In our environment, this issue appeared simultaneously on many workstations and servers, right after the Office update today.

Temporary solution:
We are instructing users to access their mail via Outlook Web App (OWA), which is not affected by this bug.

We would like to know:

  • If others have experienced this bug with this build, including on Windows Server 2016
  • If any working workaround exists, or an official fix timeframe from Microsoft

Thanks to anyone who can share their experience or updates!

5 Replies

  • rinkep's avatar
    rinkep
    Occasional Reader

    We had the same problem. The only solution was a downgrade to an older version of office 365 and disable the automatic update:

    cd %ProgramFiles%\Common Files\Microsoft Shared\ClickToRun\

    OfficeC2RClient.exe /update user updatetoversion=16.0.19231.20216

    Note: The official support for Windows Server 2016 in combination with the Microsoft 365 Apps has ended last month.

  • rinkep's avatar
    rinkep
    Occasional Reader

    We had the same problem. The only solution was a downgrade to an older version of office 365 and disable the automatic update:

    cd %ProgramFiles%\Common Files\Microsoft Shared\ClickToRun\

    OfficeC2RClient.exe /update user updatetoversion=16.0.19231.20216

    Note: The official support for Windows Server 2016 in combination with the Microsoft 365 Apps has ended last month.

  • rinkep's avatar
    rinkep
    Occasional Reader

    We had the same Problem. Make a rollback and disable the updates is the only solution at this time.

    cd %ProgramFiles%\Common Files\Microsoft Shared\ClickToRun\

    OfficeC2RClient.exe /update user updatetoversion=16.0.19231.20216

     

    Note: The combination Microsoft 365 apps with Windows 2016 will no longer supported by microsoft. The official support ended last month

     

  • wcalkins's avatar
    wcalkins
    Copper Contributor

    Outlook 365 broke for us too.  Seems to be only server 2016 (terminal server) after the update on 11/1

     

    • Carmine89's avatar
      Carmine89
      Copper Contributor

      Hi wcalkins. Actually the only way i've found is upgrate to W2k25 but is not easily applied to all.

      I've now 100 VDI with this error. I hope Microsoft found a solution shortly

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