Error: The application can't start because AppVIsvSubsystems32.dll is missing from your computer

If you start a Microsoft Office 2016 program and are presented with the error "The application can't start because AppVIsvSubsystems32.dll is missing from your computer" there are a couple of easy things you can do to try and fix that issue.

Online repair

The first thing to try is a repair of Office. It usually just takes a few minutes. The exact steps will vary slightly depending upon your operating system but the basic process is as follows:

  1. Go to Control Panel in Microsoft Windows.

  2. Choose Uninstall a program.

  3. Find Microsoft Office on your program list and click on it.

  4. Choose Change from the toolbar at the top of the program list.

    Click Change in the Uninstall Programs applet to initiate a repair of Microsoft Office
  5. In the dialog box that appears choose Quick Repair and then click the Repair button.

When Quick Repair completes, try and launch the Office program that was giving you the error. If you're still getting the error, repeat the steps above but choose Online Repair this time.

The Office Repair dialog box when repairing the OneDrive for Business sync app

Note: For the Online Repair you will need to have an active Internet connection.

For more information about this process see: Repair an Office application

If even the Online Repair doesn't resolve the issue, we need to try uninstalling and reinstalling Microsoft Office.

Uninstall and reinstall Office

  1. Click this easy fix button to uninstall Office.

    Easy fix download button indicating an automated fix is available
  2. Select your browser from the drop-down list to see how to save and then launch the file.

    1. At the bottom of the browser window, select Save.

      Select Save to open o15-ctrremove.diagcab easy fix
    2. In the next box that indicates o15-ctrremove.diagcab is finished downloading, click Open.

    3. The Uninstall Office wizard launches. Select Next and follow the prompts.

    4. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect.

    5. After restarting your computer, you can try installing Office again.

    1. At the bottom of the browser window, select Open to open the O15CTRRemove.diagcab file.

      Select Open to open the O15CTRRemove.diagcab easy fix tool

      If the file doesn’t open automatically, choose Save > Open Folder, and then double-click the file (it should start with "O15CTRRemove") to run the easy fix tool.

    2. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    3. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    4. After restarting your computer, you can try installing Office again.

    1. In the lower-lower left corner select the o15CTRRemove file and from the drop down, select Show in folder.

      From the dropdown, select Show in folder

      Double-click the download, o15CTRRemove to run the easy fix tool.

    2. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    3. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    4. After restarting your computer, you can try installing Office again.

    1. Select Save File, and then OK.

      Save O15CTRRemove.diagcab file in Firefox

      In the upper-right browser window, select Show all downloads. In the Library, select Downloads > O15CTRRemove.diagcab, and then select the folder icon. Double-click the O15CTRRemove.diagcab.

    2. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    3. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    4. After restarting your computer, you can try installing Office again.

  3. To reinstall Office, see Install Office on your PC or Mac and follow the steps for your Office plan.

See also

Still have questions or feedback about Microsoft Office?

Please see How do I give feedback on Microsoft Office?

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