Symptoms
When you are setting up Microsoft 365 Premium, you receive an error that prevents you from completing Office setup. This error only occurs in the Office setup that is associated with the following versions:
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Office Personal Premium with Microsoft 365 Services
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Office Home and Business Premium with Microsoft 365 Services
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Office Professional with Microsoft 365 Services
This error tells you that you have already redeemed the Office offer by using another Microsoft account from the one that you entered.
Cause
In most cases, you will perform the complete setup of Office from entering the product key, signing in with your Microsoft account, and installing the Office suite on your computer. In other cases, you cannot complete the setup and must restart the setup. If you successfully redeemed the Office product key the first time by using an associated Microsoft account, you receive this error if you try to redeem the offer again by using a different Microsoft account ID. However, if you enter the same Microsoft account ID the second time, you can successfully complete the installation.
Resolution
The easiest way to resolve this issue is to restart the setup process and enter the same Microsoft account ID that you used the first time that you ran the setup. Remember which Microsoft account you used to redeem your Office offer. This is because you will have to sign in by using that account when you go to your Services & subscriptions page to provision some additional services and to access links to reinstall Office if there is a Windows reset on your device.
You can also go to the Services & subscriptions page and install Office from there.
