Usually, a product key in Microsoft Office is a 25-digit code that is used to activate Windows. For adding the product key to your Microsoft account, you need to purchase the product key from Microsoft. Once you have bought the product key, follow the instructions in this article to know how to add product key to Microsoft account.

Using two methods, you can add the product key to your Microsoft account. If you have purchased a new product key, visit Microsoft's official website and add the key to your account. In case you have bought the product key from the Microsoft Store, go to the Microsoft Store and add the product key to your Microsoft account.


  • If your product key is new, visit the Microsoft website and sign in to your Microsoft account.
  • Type your product key in the respective field.
  • Now, you will be given access to use Microsoft Office.
  • In case you have purchased the product key through the Microsoft Store, go to the next step.


In this manner, how to add product key to Microsoft account is done. If you face issues while adding the product key to your Microsoft account, you can get back to us. We can guide you in resolving the issue.

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