Activate Office 2021

Retail licenses for Office 2021 usually allow installation on one PC (or one PC and one Mac, depending on the edition). If you try to activate on a second PC, you may be blocked. You must deactivate the license on the old PC first via your Microsoft Account dashboard.

This is the most common method for users who bought Office Home & Student or Office Home & Business from a retail store or online. activate office 2021

To activate Office 2021, you generally need two things: Retail licenses for Office 2021 usually allow installation

To , you must link your 25-character product key to a Microsoft account through the official setup portal or sign in to a pre-installed version on a new device. Office 2021 is a one-time purchase, meaning once it is linked to your account, you can reinstall and reactivate it without needing to enter the key again. Method 1: Direct Activation with a Product Key This is the most common method for users

For organizations with MAK/KMS activation.

If you see a yellow warning bar stating "Unlicensed Product":