Try these solutions to fix your Office error

While we continue to research the specific reason for the error you received, please try one of the solutions in this topic.

If these solutions don’t work for you, please use the Contact us button at the bottom of this topic to contact support, and leave us a comment telling us more about the error your received.

  1. Restart your computer.

  2. Reinstall Office.

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

Note: Office needs to be installed on the same hard drive where Windows is installed. How much space does it need?

  1. Click this easy fix button to uninstall and completely clean up your Office installation.

    Easy fix download button indicating an automated fix is available
  2. Select your browser from the drop-down list to see the remaining steps.

    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.

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

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

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

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

    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.

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

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

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

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

    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.digicab, and then select the folder icon. Double-click the O15CTRRemove.digicab.

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

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

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

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

The Office offline installer may help bypass potential proxy, firewall, antivirus, or Internet connection issues that might occur during an Office 2016 installation.

How you use the offline installer depends on which Office product you have. See Office for home and Office for business plans and then select from the table below.

Office product

Do this

Your Office product is under Office for home

Use the Office 2016 offline installer

Your Office product is under Office for business

Contact your admin. If you're the admin, you can use the Office Deployment Tool to download the Office software to your local network. You can then deploy Office by using the software deployment method you typically use.

As an admin, you can also Contact Office 365 for business support for additional help.

Leave us a comment

Please let us know at the bottom of this topic if these steps were helpful by selecting Yes or No. If they were helpful, tell us which option fixed your problem. If they weren't helpful, and you're still having trouble installing Office, tell us what error message you received, and if you can, where in the install process the error occurred. We'll use your feedback to help fix this issue.

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