COM add-ins are not displayed in the COM Add-Ins dialog box in Excel 2013 and Excel 2016


Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.


You try to enable one of the following COM add-ins installed with Microsoft Excel 2013 and Microsoft Excel 2016:

  • Microsoft Office PowerPivot for Excel 2013 and Excel 2016
  • Power View

To do this, you click Options, click Add-Ins, select Com Add-Ins in the Manage list, and then click Go. In this situation, the COM add-ins do not appear in the COM Add-Ins dialog box as expected.


This issue occurs because the registry keys that provide the add-in information to the Add-in Manager are damaged or set to invalid values. See More Information for the Office 2013 and Office 2016 SKUs that contain these add-ins.



This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows.

To work around this issue, follow these steps to delete the affected registry keys:

  1. Exit Excel 2013 or Excel 2016.
  2. Start Registry Editor. To do this, use the appropriate method for your operating system, as follows:
    • In Windows 7, click Start, click Run, type regedit, and then click OK.
    • In Windows 8, click Start, type regedit in the Start Search box, and then press Enter.
  3. Locate the registry keys that are described in the "Notes" section that follows this procedure.
  4. Right-click the appropriate registry entry, and then click Delete.
  5. Exit Registry Editor.
  6. Start Excel 2013 or Excel 2016.
  7. Follow the steps that are described in the "Symptoms" section to enable the add-in.


  • Excel 2013 and Excel 2016 automatically rebuilds the registry keys.

  • The registry keys that you have to delete vary, depending on the add-ins that you use. You have to delete the registry keys only for the add-in that is missing from the COM Add-Ins dialog box. Each add-ins corresponds to the following registry keys, respectively:

    Microsoft Office PowerPivot for Excel 2013 add-in

    • HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\User Settings\PowerPivotExcelAddin
    • HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\PowerPivotExcelClientAddIn.NativeEntry.1

    Microsoft Office PowerPivot for Excel 2016 add-in

    • HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\User Settings\PowerPivotExcelAddin
    • HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\PowerPivotExcelClientAddIn.NativeEntry.1

    Power View add-in

    • HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\User Settings\PowerViewExcelAddin
    • HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\AdHocReportingExcelClientLib.AdHocReportingExcelClientAddIn.1

More Information

These add-ins and the Inquire add-in all require specific SKUs of Microsoft Office 2013 and Microsoft Office 2016. They are available on:

  • Microsoft Office 2013 Professional Plus and Microsoft Office Professional Plus 2016
  • Microsoft Microsoft 365 Apps for enterprise available as a standalone subscription.
  • Microsoft Microsoft 365 Apps for enterprise available as part of the Office 365 Enterprise E3, Office 365 Enterprise E4, Office 365 Education E2, Office 365 Education E3, Office 365 Government E3, or Office 365 Government E4 offerings.
  • Microsoft Excel 2013 standalone with the update: Description of the Excel 2013 update: August 13, 2013

For more information about a COM add-in, see What Is a COM Add-in?.