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Microsoft 365 and Office | Install, redeem, activate | Other | Windows
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
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I understand that Office 2024 is installed on the same device where it was previously activated, but you are receiving the message, “This product is already installed on another device.”
This can occur when Office detects a hardware or configuration change and treats the computer as a different device. In the error window, please select Contact support to transfer your license to this device. If the link returns a 404 error, open an Office app and select File > Account > Update Options > Update Now, then try the link again.
Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on reported issues, requests, or ideas only.
Please also confirm that you are signed in with the same Microsoft account originally used to redeem or purchase Office 2024. If the issue continues, contact Microsoft Support and request assistance reactivating the Office 2024 license on this device.
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