Add-in can only be Disabled by an Administrator

Last reviewed on August 22, 2012   —  8 comments

The Problem

When you attempt to remove an add-in, the dialog tells you that only an administrator can connect or disconnect the add-in:

This add-in is installed for all users on this computer and can only be connected or disconnected by an administrator.

Add-in is installed for all users

The Cause

Trying to remove an add-in that was installed using the option “All users” will result in this error message. If the add-in was installed for the current user this message will not appear.

Install for all usersWhen you install software, the screen may have an option to install it for the current user or for all users of the computer as is shown on this screenshot.

Most users click Next without paying much attention to this screen (using the default set by the developer), or set it for “All users” so the add-ins works for all Windows accounts.

The Solution

Close Outlook and restart it using Run as Administrator then remove the add-in. Close Outlook and restart Outlook normally when finished.

To Run as Administrator, right-click on outlook.exe or the Outlook shortcut and choose Run as Administrator.

If Run as Administrator is not listed, hold Ctrl+Shift+Alt as you right-click on the shortcut to show the full menu.


About Diane Poremsky

Diane Poremsky
A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book. She also created video training CDs and online training classes for Microsoft Outlook. You can find her helping people online in Outlook Forums as well as in the Microsoft Answers and TechNet forums.

Please post long or more complicated questions at Outlook forums by

8 responses to “Add-in can only be Disabled by an Administrator”

  1. Angel Gayle

    Thanks, this was very helpful! I was actually trying to enable an add-in, but the same principles applied.

  2. Dana Beveridge

    Diane You are Amazing! I do tech support and have been trying to help a caller with this issue all week. Thank you Thank You

  3. Peter Desmond

    Thank you Diane - very helpful insights. Peter

  4. Linda

    Even when I choose "run as administrator" I still get the "This add-in is installed for all users on this computer and can only be connected or disconnected by an administrator." message

  5. behnam jamshidi

    thank you diane perfect solution. Behnam

  6. KaytonK

    I have the same thing Peter, one user out of 50 on the same Terminal Server can't enable it, even tried making them an administrator and domain admin

  7. Bill Darron

    [Ctrl]+[Shift] worked to right click and bring up the Admin menu. I didn't need [Shift].

    1. Bill Darron

      (I meant I didn't need [Alt] )

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