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Adding a device to 365 office/microsoft account

Gavin Bilington 0 Reputation points
2026-02-07T12:37:46.8333333+00:00

Hi

I have install excel etc in the office upstairs and i want to add that machine to my account so i can activate office and wor, when i go into my account online and click devices all i get is a pulsing greyed out are and i cant see or add a device to my account.

I currenty have a Microsoft 365 Personal Subscriptions and 3 spare devices.

Sometimes on the accoutn screen i can see the 2 current devices sometimes it says i dont have any at all ???

HELP

Gavin Billington

Microsoft 365 and Office | Subscription, account, billing | For home | Windows
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  1. Nathan Roberts (SN) 10,746 Reputation points Volunteer Moderator
    2026-02-07T13:36:50.5933333+00:00

    Hey there, Gavin Bilington

    If you have Microsoft 365 installed on your device downstairs, please open a Microsoft 365 app on your computer (can be Word, Excel or PowerPoint).

    From the main page, please click onto 'Account'

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    On the account page, you should see your product information page.

    User's image

    Mine is different because I have activated my Microsoft 365, whereas you should see an option to sign in to activate Office. Please can you sign in using your other account you have a Microsoft 365 subscription with.

    This will activate Microsoft 365 for you and use one of your available product keys.

    If you haven't got Microsoft 365 downloaded, or not the same Microsoft 365 you have purchased, please download it from your account page here: https://account.microsoft.com/services

    You will see an option to install a desktop version of Microsoft 365 apps to your device.

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    Once you have done this, please activate it using your account using the method I have mentioned above.

    Hope this helps,
    Nathan

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  2. Q&A Assist
    2026-02-07T12:37:57.4766667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    To add a device to your Microsoft 365 account and activate Office applications like Excel, follow these steps:

    1. Check Device Compatibility: Ensure that the device you want to add meets the requirements for Microsoft 365 installation.
    2. Sign In to Your Microsoft Account: Go to the Microsoft 365 website and sign in with your Microsoft account associated with your subscription.
    3. Install Microsoft 365 Apps: If the device is not showing up, you may need to install the Office applications on that device. You can do this by going to the Microsoft 365 portal, selecting Install apps, and then choosing the appropriate apps to install on your new device.
    4. Check Device List: After installation, check the device list again in your account. Sometimes it may take a moment for the new device to appear.
    5. Remove Unused Devices: If you have reached the limit of devices, you may need to remove an unused device from your account. You can do this by going to the device list in your Microsoft account and removing any devices you no longer use.
    6. Troubleshooting: If you continue to experience issues, consider running the Microsoft 365 activation troubleshooter, which can help resolve activation problems.

    If the area is greyed out and not responsive, it may be a temporary issue with the Microsoft account service. Try refreshing the page or checking back later.


    References:

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