Activation problem in Office for Mac

Selim Bacıoğlu 0 Reputation points
2026-07-14T10:44:37.2233333+00:00

I wanted to use a new email address for my Microsoft account, so I opened a new account with ******@bacioglu.com.tr, paid for subscription but I cannot activate the account in Word or Excel installed in my Mac. When I enter the email and select "personal account", I got the following mistake: "An unknown error has occurred. The error code is: 0x0"

Microsoft 365 and Office | Install, redeem, activate | For home | MacOS
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  1. DaveM121 902.9K Reputation points Independent Advisor
    2026-07-14T11:18:24.8533333+00:00

    1

    This error is being reported by many people with the Office apps on an Apple Mac device

    The best option is to completely uninstall the Office apps from your Mac, then follow the steps at this link to remove the Office license.

    https://support.microsoft.com/ru-ru/microsoft-365-activation-licensing/how-to-remove-office-license-files-on-a-mac

    Then, restart your Mac and sign in to your Microsoft account online ( https://account.microsoft.com/services/ ) to reinstall the Office apps.

    2

    If you are still unable to activate Office, what version of Office and the MacOS is installed on your computer.

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