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How do I activate an existing subscription for a new laptop?

Kevin Thomas 0 Reputation points
2026-04-30T08:02:10.3966667+00:00

Downloaded 365 to a new macbook however i am unable to save any file changes in Excel, Word etc, getting message that I need to activate my subscription. How do I do this.

Microsoft 365 and Office | Install, redeem, activate | Other | MacOS
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  1. Stefan Blom 341.3K Reputation points MVP Volunteer Moderator
    2026-04-30T08:57:59.68+00:00

    Did you install Office on your new Mac? Use your associated account at https://account.microsoft.com/services . Activation is done by signing in with your credentials. See https://support.microsoft.com/en-us/office/activate-office-for-mac-7f6646b1-bb14-422a-9ad4-a53410fcefb2.

    Note that you can always use subscription versions of Office on more than one device. (There is a limit to the number of simultaneous activations.)

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  2. Gunasekar N 68,335 Reputation points Independent Advisor
    2026-04-30T08:43:07.34+00:00

    Hello, thank you for reaching out to Microsoft Q&A.

    Please use the Microsoft Office license removal tool to remove all existing Office licenses, then reactivate Office using the same Microsoft account associated with your Office 365 subscription.

    How to remove Office license files on a Mac

    Let me know if you still need more help.

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  3. AI answer

    2026-04-30T08:02:21.35+00:00

    To activate Microsoft 365 on the new MacBook so Excel, Word, and other apps can save changes, use the account-based activation in the Office app itself:

    1. Open Finder > Applications and start an Office app, for example Microsoft Word.
    2. In the What's New box, select Get Started.
    3. On the Sign in to activate Office screen, select Sign in.
      • If this screen does not appear, open a blank document and go to File > New from template > Sign in.
    4. Enter the email address that has the active Microsoft 365 subscription (the same account used to purchase or manage the subscription), then select Next.
    5. Enter the password for that account and select Sign in.
    6. Office will check for a valid license on that account and then activate the apps.
    7. When activation completes, select Start Using Word (or the corresponding button) and then try creating and saving a file again.

    If activation still fails or you see errors like “No license found” or repeated prompts to activate, follow the activation troubleshooting steps:

    1. Confirm that the subscription is active for the account being used.
    2. Make sure the Mac has internet access.
    3. Reset Office credentials on the Mac:
      • Open Spotlight (magnifying glass in the top-right).
      • Search for and open Keychain.
      • Search for Office and delete the data license file.
      • Then download and run this script to clean up activation and try signing in again.

    Once the correct licensed account is signed in and activation succeeds, saving changes in Excel, Word, and other Office apps on the new MacBook will work normally.

    References:

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

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