Reinstall Office 2021 on replacement MacBook Pro running Tahoe

tom read 0 Reputation points
2026-07-27T18:02:57.55+00:00

I have two licenses for Office 2021. One is on another macBook Air and one was on a MBP that I replaced with a new M5 MBP. I installed Office with "Microsoft_Office_16.67.22111300_BusinessPro_Installer.pkg" and when I try to activate it I get an Error code 0x0.

How can I activate this copy on my new MBP?

Thanks,

Tom Read

Microsoft 365 and Office | Install, redeem, activate | Other | MacOS
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  1. EmilyS726 255.9K Reputation points Independent Advisor
    2026-07-27T18:36:08.96+00:00

    Is there any reason you are using the 16.67 version because Tahoe can run the latest version?

    I would suggest that you uninstall it and get the installer file directly from your account's order history/service page.

    If it still doesn't work, download the updater and run it. https://support.microsoft.com/office/office-for-mac/troubleshoot-microsoft-autoupdate-in-microsoft-365-and-office-for-mac?apid=ets

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