Finding the Microsoft Office product key using a key finder tool

Once Microsoft Office is installed, the serial number, also known as the product key or software key, is no longer openly displayed. Office can only be installed once using a product key, but you can easily transfer the software to a new computer. Uninstall the software from your old computer and reinstall it using the same key.

Microsoft displays a product ID in the installed Office program, but this ID has nothing to do with the product key. The product key is stored in encrypted form in the registry and cannot be viewed in plain text after installation, whereas the Office version number is clearly displayed. We’ll show you how to find the Microsoft Office product key if you no longer have the original packaging or order confirmation.

Although Windows offers Regedit, a built-in solution for accessing the registry database, inexperienced users may have difficulty finding the Office product key using Regedit. Third-party tools like Magical Jelly Bean Keyfinder are more user-friendly. They automatically decrypt and reveal product keys stored in the registry for Office and other Microsoft products. You can use these tools to find operating system keys such as the Windows 7 key if they are stored in the registry database. Other tools help you find product keys like the Windows 8 key or the Windows 10 key, which are stored in the BIOS.

When you buy Microsoft 365, you don’t receive an Office product key. Instead, you purchase a one-year license that is stored in your Microsoft account. Since these versions don’t have a traditional product key, key finder tools are not able to recover the product key for the versions of Office used in Microsoft 365. However, you can install the new versions of Office locally without a subscription by purchasing a one-time product key. In this case, the product keys are then stored in the registry as usual.

The Magical Jelly Bean Keyfinder only recovers product keys up to Office version 2010. Other similar tools are able to find the serial number for newer versions of Office, as long as these versions are used locally and not as part of a Microsoft 365 subscription.