Outlook: Something Went Wrong Error 80090016

KB ID 0001549

Problem

When attempting to open Outlook you see this error;

Outlook Error 80090016

Something went wrong
Your computer’s Trusted Platform Module has malfunctioned. If this error persists, contact your system administrator with this error code 80090016

Note: The this won’t affect users who are subject to MFA (Multi Factor Authentication,) so this can be enabled to solve this problem. 

Solution One

On the affected machine navigate to;

C:\users\%username%\AppData\Local\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy

Outlook Error something went wrong

Rename that folder to Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy.old 

The log out and back in again.

Solution Two

WARNING: This involves disabling modern authentication, do not consider this a fix, it’s more of a work around, that will stop working in or around November 2019, when modern authentication is manditory.

On the affected machine, run regedit and navigate to;

HKEY_CURRENT_USER > Software > Microsoft > Office > 16.0 > Common > Identity

Create a new DWORD (32 Bit) Entry

  • Name: EnableADAL
  • Value: 0 (that’s a Zero)

Outlook EnableADAL

What does this do?: It disables ‘Modern Authentication’.

Then restart Outlook. (Note: It may re-prompt for a password).

Related Articles, References, Credits, or External Links

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Author: PeteLong

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36 Comments

  1. “What does this do?: It enables ‘Modern Authentication’.”

    Disables, Shirley?

    Post a Reply
    • Hi Bruce (correct! – need more coffee)
      – And don’t call me Shirley! 🙂

      Pete

      Post a Reply
  2. Worked a treat with a client battling this issue. Thanks!

    Post a Reply
    • Working perfectly.
      Thank you so much 🙂

      Post a Reply
  3. You made my day. It solved this 3 days pending issue in 10 seconds. That’s great.

    Post a Reply
  4. You saved my life ! Works like a charm !!
    Thank you !

    Post a Reply
  5. I followed the steps, restarted outlook, and am still having the same issue. I wonder what else could be causing the problem.

    Post a Reply
    • me too, same error remains (after rebooting too)

      Post a Reply
  6. Reg entry worked for me. THANKS!!!

    Post a Reply
  7. oh man worked like charm thanks

    Post a Reply
  8. This may resolve the issue, but I feel like jumping straight into disabling modern auth is not the best resolution.

    Post a Reply
    • Firstly Thanks for the feedback, If you feel there’s a better solution, please post it here for the benefit of others.

      Post a Reply
      • Thanks PeteLong for your hints. Nevertheless I agree with Heywood, it is not a good idea to disable Modern Authentication. And I am affraid it is the one who propose a solution who should estimate the impact and offer other options when it has undesired consequences.

        Post a Reply
        • Guys, Do some research! if a tenant requires MFA/ADAL or OAuth they will have it enabled at an ORG level, so disabling it on a client machine will make no difference whatsoever. If you disable it on a client and it can still connect it was not being used anyway.

          While I appreciate all feedback, think like technicians, if you don’t like a solution, then either find a better one, and communicate it to your peers, or don’t implement the solution that I propose. Remember I’m providing this information for free, for the benefit of the technical community.

          Post a Reply
          • If modern auth is not working for a single client then disabling it is a workaround. While this may get someone out of a tough spot, calling it a solution is misleading. Nothing wrong with a workaround, but it is best to at least highlight the risks of disabling the more secure authentication method if that is what you are recommending.

  9. You saved my day and swett
    Thank you so much

    Post a Reply
  10. You saved my working hours, Thank you very much….

    Post a Reply
  11. Great, working perfectly. Thank you so much.

    Post a Reply
  12. This is actually a poor solution if you are in an enterprise environment as it disables modern authentications and defaults to legacy.

    A better option is to rename the folder C:\users\$dir\AppData\Local\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy to .old and log the user in again.

    Post a Reply
    • If that’s the better solution, it’s the first one that’s been offered, can anyone confirm that this resolves the issue? If so I’ll update ether article accordingly?

      Pete

      Post a Reply
      • Pete I tried the tip from BraveSpear and it worked for me

        Post a Reply
        • Thank you Andrew article updated accordingly. Kudos to BraveSpear.

          Pete

          Post a Reply
  13. #1 Worked for me!!! Thanks

    Post a Reply
  14. worked for me, Thanks for the tips

    Post a Reply
  15. Solution 1 worked perfectly…

    Thanks Pete

    Post a Reply
  16. I had similar issue that was resolved by uninstalled the “Trusted Platform Module” in Device Manager and restart the computer.

    Post a Reply
    • Wouldn’t let me change the name of the file like in solution 1 because it said that the file was in use. Uninstalling from device manager worked for me as well, so thank you!

      Post a Reply
  17. dude you saved my day. thanks for this pinpoint solution.

    awesome.

    regards.

    Post a Reply
  18. trying method one but file is locked and cannot be renamed. Used by another app. But I do not know which one…

    Post a Reply
    • Make sure Outlook is closed, and it’s not running in the task tray, and no other users are logged in.

      Post a Reply
  19. The registry change worked fine, thanks, until we can apply a better correction.

    Post a Reply
  20. Renaming the folder doesn’t work in all situations. I’ve now encountered this specific issue on 5+ machines. For several of them, renaming the folder did the trick. For the rest, I’ve ended up recreating the user profile, after trying everything else. The question is, why is this becoming a regular thing?

    Post a Reply
  21. Thanks, this information is very usefull

    Post a Reply
  22. Muchas gracias por compartir esta información, para mi la solucion #1 no funcionó, la opcion de Regedit SI.

    Tal como alguien pregunta más arriba, sería interesante saber porque se está produciendo esta situación.

    Saludos

    Post a Reply
  23. Solution 2 its working for me thank you man

    Post a Reply
  24. Hi.
    This worked on a computer that has issues whith all kinds of authentication. Outlook, OneDrive, Chrome sync account, Adobe Cloud account and so on.
    Well, it worked for a while that is. After three or four re-boots and about the same ammount of shut-downs the issues are back.
    Thanks anyway…

    Post a Reply

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