Error code 80090016 Trusted Platform Module has malfunctioned.

Anonymous
2020-03-03T17:45:17+00:00

When I try to add a new Office 365 email to my outlook I get the error below.   I think it's because of my "Work or school account" which I want to remove. I'm not sure how my email was signed up for this second account. I set up this computer for home use only, I won't be using any of the Microsoft Azure features. 

My question is, what will happen when I remove my “work account” and leave my Microsoft account?  Everything is backed up on Onedrive, I just don’t know what to expect because when I went to remove it, it warned me about losing data and settings.

Any help would be appreciated. Thank you!

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2023-01-31T19:00:24+00:00

    This fixed it for me.

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  2. Anonymous
    2023-01-28T11:16:43+00:00

    We are having this same issue. This is what fixed it for us. Create the following registry entries.

    [HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity "DisableADALatopWAMOverride"=dword:00000001

    [HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity "DisableAADWAM"=dword:00000001

    This did the trick for me!!!

    If it helps anyone else, this did not initially work, but clearing the identities for the accounts (Each ID in its own folder in regedit. Delete the entire folder.) that I was unable to log into, then restarting the computer, then trying to log in again worked. I had to still delete the bad account from microsoft mail, but afterwards outlook and microsoft mail were both fixed.

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  4. Anonymous
    2022-11-29T16:20:59+00:00

    One of my users got this error code 80090016 when trying to log into office applications on laptop. They were able to log into office 365 online just not desktop app on this particular PC. They could login to app on another device and other users could login into app on this laptop (obviously different user logins profiles).

    So I removed that user's profile from Windows, had them login and all works now.

    Remove profile: (windows 10)

    Be sure to backupanything in user's folders: desktop, documents, pictures, etc.

    login to Windows as another user with local administrator rights.

    Control Panel, System, Advanced System Settings (on right menu)

    from System Properties window that opens; click Setting button for User Profiles.

    Select profile to remove, click delete.

    restart Windows, have user login (first time login experience)

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  5. Anonymous
    2022-09-07T01:10:40+00:00

    This method has worked for me a few times actually...great suggestion and should be marked as the answer here!!!

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