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how download office 2019

Graham Osborne 20 Reputation points
2026-06-01T11:36:11.4233333+00:00

I have migrated my Office 2019 to my new Mac but the authorisation has not migrated. How do I authorise it as I cannot find the product key

Microsoft 365 and Office | Install, redeem, activate | For home | MacOS
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Xavier-D 8,920 Reputation points Microsoft External Staff Moderator
2026-06-03T07:41:17.11+00:00

Hello Graham Osborne

I can see that you need activate your Office 2019 on your new Mac

Is the answer provided by AI able to help you solve this issue?

To better assist with your issue, I need to ask a couple of question first:

Was this copy installed from the Mac App Store, or from Microsoft’s direct installer?

Have you already tried signing out of Office and signing back in with a different Microsoft account, if you have more than one? Activation on Mac depends on signing in with the account that holds the valid Office license.

I hope to hear update about this issue from you soon.

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  1. AI answer

    2026-06-01T11:36:34.2466667+00:00

    To authorize Office Home & Student/Business 2019 on the new Mac without using the product key directly, reinstall and activate it through the Microsoft account that was used when it was first set up.

    1. On the Mac, open a browser and go to the Services & subscriptions page at https://account.microsoft.com/services.
    2. Sign in with the same Microsoft account that was used to redeem/activate Office 2019 originally.
    3. In the list of products, locate the Office 2019 license.
    4. Select Install to download the Office installer for Mac.
    5. Once the download completes, open Finder → Downloads and double‑click the installer package.
    6. Follow the on‑screen steps (Continue → Agree → Install, entering the Mac login password if prompted) to install Office.
    7. After installation, open an Office app (for example, Word). When prompted, sign in with the same Microsoft account used in step 2 to complete activation.

    The product key is not required again once the license is linked to the Microsoft account; activation is handled entirely via that account.

    If the product key was never redeemed to a Microsoft account and truly cannot be found, use the guidance in the product key help article to locate it or contact the original seller.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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