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Unable to launch 365 applications on my Mac

Bob Bordignon 0 Reputation points
2026-02-16T19:45:45.57+00:00

I have intalled Microsoft 365, but when I try to launch an application I get and error and the application does not launch

Microsoft 365 and Office | Excel | For home | iOS
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  1. John Jefferson Doyon 60,440 Reputation points Independent Advisor
    2026-02-16T20:20:14.7033333+00:00

    Hi, I'm John! I will help you with this.

    To help narrow down the issue:

    1. May I know what exact error message you're encountering?
    2. Are you able to see your MS365 subscription under the Services & subscriptions page here: https://account.microsoft.com/services (make sure you’re signed in with the same Microsoft account you used to buy Office)?

    If you can see it there and it is active, please follow these steps below.


    If you haven't already, I’d suggest is to uninstall any existing Office apps on your Mac to avoid conflict:

    Then, to reinstall Microsoft Office:

    • Go to https://account.microsoft.com/services
    • Sign in using the same Microsoft account linked to your license.
    • Find your Microsoft 365 subscription and click the "Install".
    • That will download the installer for the Office apps, just run it and follow the steps.

    If anything’s unclear or the "Install" option still doesn’t show, feel free to let me know. I’ll be happy to walk you through it!


    I really hope this information is helpful! Let me know if you have any further questions or concerns.

    Regards,

    John J.D.

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