How to permanently remove Teams plugin from Outlook

Monika Sirko 6 Reputation points
2022-06-28T19:24:14.5+00:00

I've tried to remove Teams plug in for Outlook multiple times but it keeps coming back upon laptop reboot.

To remove I navigate to File > Options > Add-ins. I clikc on Go next to COM Add-ins. I select Teams and click on remove.

But it does not work. Next time I reboot I have to repeat the same steps.

How do I remove Teams plug on once and for all?

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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  1. ChristyZhang-MSFT 20,801 Reputation points Microsoft Vendor
    2022-06-29T07:28:13.007+00:00

    Hi @Monika Sirko ,

    Welcome to our forum!

    Based on my test on Outlook 365(version is as shown in the below figure), following the steps you said, I can successfully remove Teams add-in and will not recover after restarting Outlook. In order to better resolve your issue, please provide more information about your case:

    • What's the version of your Outlook? (File > Office Account > About Outlook). Please make sure you have upgraded your Outlook to the latest version.
    • Can other users in your organization remove the Teams add-in successfully?
    • On the other hand, it's suggested that you could remove other add-ins to check if they can be removed permanently.

    In addition, if you currently don't want to use the Teams Meeting add-in, as a workaround, it's suggested that you use the registry to disable it. Please open registry and located to: Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Outlook\Addins\TeamsAddin.FastConnect, then double click LoadBehavior and change the value to 0. Then the Teams Meeting addin will not shown in Outlook.
    (Note: Serious problems can occur if you modify the registry incorrectly. Before making changes, back up the registry to restore it in case something goes wrong.)

    Hope the above help!

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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  2. Andre Schumacher 1 Reputation point
    2022-08-16T20:51:24.073+00:00

    I just wanted to add some facts:
    The issue is neither related to the Office version nor the windows version.
    Same is happening to me on Windows 7 / Office 2010 (Office14.0).
    My problem with the addin is, that it crashes outlook randomly while it is open and
    a crash is nearly guaranteed when closing outlook while the addin is active.
    I have .pst files on a network drive (I know it is unsupported, but it was working for about 10 years).
    When crashing, you can see a huge read/write action taking place in synology dsm which comes
    to an end about 2 minutes after it began. Then it suddenly stops, damaging the .pst files.
    But this is just what I noticed and wanted to mention, because i have NO IDEA why a teams addin
    is causing massive read/write actions in .pst files. This only happens when the teams addin is active.
    And the annoying part is: It is active most of the time, because it reinstalls itself without asking.

    Please note:
    The option "Register Teams as chat program within Office" is NOT checked within Teams.
    I know the "set, but not checked" bug within certain programs, so I already tried to check it, then uncheck it again.

    It does not matter if I

    • Uncheck the addin in the addins list
    • Click "Remove" in the addins list
    • Set DWORD "LoadBehavior" to "0" in HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\TeamsAddin.FastConnect

    It simply sets "LoadBehaviour" back to "3" after the next Teams startup (Or, in Monika's case after a reboot if Teams is in Autostart)

    I tried to change
    HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Resiliency\DoNotDisableAddinList
    DWORD "TeamsAddin.Connect" from "1" to "0". No effect.

    I even added registry Keys to prevent this under
    HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\14.0\outlook\resiliency\addinlist
    DWORD "TeamsAddin.FastConnect" set to "0"

    No way, it just does not work, the addin just comes back.

    Some additional facts:
    This is my private computer, I work within a RDS/RDP session for my company where I can't use
    Teams from my company within RDS, because we do not forward audio/video properly. Audio is totally delayed.
    So I use Teams client locally, but it integrates into my private Outlook and I want to restrict Teams from doing so.

    I know, this is quite an exotic setup within an old operating system and an old office version.
    But maybe this helps to identify bugs within Teams or to find a solution for Monika and me.

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  3. Monika Sirko 6 Reputation points
    2022-10-31T21:10:52.643+00:00

    I am still dealing with this annoying thing where Teams plug in cannot be permanently removed from Outlook.
    Can someone help me?

  4. 3748Sierra 0 Reputation points
    2023-06-21T17:02:33.0466667+00:00

    Does not work for me. This does not access appdata on Win 10

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  5. 3748Sierra 0 Reputation points
    2023-06-21T17:03:38.7933333+00:00

    Does not access appdata on Wndows10

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