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on January 12, 2026
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The problem is that this is starting FixTechGuide fix for stuck folders to affect everyone in the company. It started with one user and now we have 20 reports and growing. I’d rather not go through every registy in the company to fix this issue.
I just went on the apps page and disabled "allow users to install 3rd party apps," while keeping the Microsoft app installs enabled.While most add-ins will not be disabled by the add-in disabling feature, you don't want your add-in to be disabled consistently.To disable certain add-in, locate to the add-in under Addins, in the right panel, there is a subkey named LoadBehavior, set the value to ‘2’ to disable it.I’ve got a problem with Outlook for users in the office that addins keep crashing Outlook.The problem is that this is starting to affect everyone in the company.This started happening a week or so ago, but it’s becoming increasingly annoying.It’s just strange that this is happening to everyone regardless of Outlook version (2016 and 2019) or Windows version (Windows 7 and Windows 10).
Turn an add-in off for Outlook for Windows
This started happening a week or so ago, but it’s becoming increasingly annoying. Oftentimes in the disabled add-in box is Adobe Send & Track or Adobe PDF Maker, but also sometimes Salesforce for Outlook, which we need to continue to have enabled. We decided to discontinue the outlook plugin service.
How do I disable an Outlook 2013 add-in without starting Outlook?
I suppose if it comes to it I can set a group policy to disabled all Outlook addins. It’s just strange that this is happening to everyone regardless of Outlook version (2016 and 2019) or Windows version (Windows 7 and Windows 10). I just went on the apps page and disabled "allow users to install 3rd party apps," while keeping the Microsoft app installs enabled. Compliance reached out to me and said diagnose Office activation conflicts users should only be able to freely install Microsoft owned apps on o365.
Support for keeping add-ins enabled
This applies to teams and outlook and office apps. I was under the impression Fix Outlook and Office 365 Errors 2025 that this "let users access third party apps in your tenant" was all encompassing and would disable all 3rd party apps / add-ins for all o365 apps. Now when I open teams i can clearly see that 3rd party apps need to be requested but ms apps can be installed without issue.
Preventing add-ins from being disabled
However, you can re-enable add-ins and prevent add-ins from being auto-disabled by other Office programs. I’ve got a problem with Outlook for users in the office that addins keep crashing Outlook. I disable all addins on the users machines but the addins keep re-enabling themselves.
To disable all the add-ins, just use Group Policy to delete or rename the Addins to OldAddins.
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