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I found an office 365 key code in my paperwork- how do I tell if it was used already or it is still new?

LAUREN 0 Reputation points
2026-02-05T19:22:29.2833333+00:00

I cant remember if I used this office 365 key code on an older computer or if this key code perhaps is brand new and can be put on my new laptop. Is there somewhere to try it or can I call microsoft and ask?

Thanks

Microsoft 365 and Office | Install, redeem, activate | For home | Windows
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  1. EmilyS726 211.4K Reputation points Independent Advisor
    2026-02-05T19:57:52.89+00:00

    Hello

    The code itself is not the license key. It is to redeem the product and then tie it to your Microsoft account.

    You can always Go to www.office.com/setup or Microsoft365.com/setup and enter the code, to see if it has been redeemed.

    If it has, your Microsoft account moving forward is your license.

    Is this for a subscription? IF so, on the new computer, just go ahead and install it.

    Please go to https://www.office.com

    Sign into the Microsoft account you used for the subscription. Click on Apps on the left.

    Then on the upper right, click on "Install apps". This will now download the installer file. Once downloaded, click on the file to install. It will install the Desktop version of the apps for you then.

    https://support.microsoft.com/office/download-install-or-reinstall-microsoft-365-or-office-2024-on-a-pc-or-mac-4414eaaf-0478-48be-9c42-23adc4716658

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  2. Q&A Assist
    2026-02-05T19:23:41.04+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To determine if your Office 365 key code has already been used, you can try the following steps:

    1. Check Activation Status: You can attempt to activate the key code by visiting the Microsoft activation page. If the key has been used, you will receive a message indicating that the key is already in use.
    2. Use the Microsoft 365 Admin Center: If you have access to the Microsoft 365 Admin Center, you can check your subscriptions and see if the key is associated with any existing accounts.
    3. Contact Microsoft Support: If you're unsure, you can call Microsoft Support for assistance. They can help you verify the status of the key code.

    For more detailed instructions on how to activate Microsoft 365 Apps with a product key, you can refer to the official Microsoft documentation.


    References:

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