Some versions of Office 2021 that are pre-installed Windows 11 PCs, aren't associated with a Microsoft account. If you need to reinstall the Office apps for these versions, you must reinstall them using the Microsoft Store app.

Reinstall Office 2021 from the Microsoft Store Library

  1. Select Start  and then open the Microsoft Store app on your Windows device.

  2. From the Microsoft Store app, select More  > My Library.

  3. From the Library, find the Office version included with the device, and select Redeem.

  4. From the product page, select Redeem or Install (what you see will depend if Office is still installed on your device). Office will begin downloading.

  5. Follow the prompts to complete the installation.

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