Have active subscription but lost pass key

Microsoft 365 Basic does not normally require a product key for activation on a new PC. For Microsoft 365, activation is done by signing in with the Microsoft account that owns the subscription.

1. On the new Windows 11 PC, open a Microsoft 365 app.
2. When prompted to activate, sign in with the same Microsoft account used to buy or renew the subscription.
3. If Office asks for a product key, use the Microsoft account instead of a key.
4. To install or reinstall from the account, go to the Microsoft account, Services & subscriptions page.

Important details:

• A new order number is not a product key.
• If the renewal was purchased directly from Microsoft, the subscription is usually associated automatically with the Microsoft account.
• If a physical box or card was purchased from a retail store, the subscription may not start until the product key on the box or card is redeemed.
• If the subscription does not appear under Services & subscriptions, check the order under account.microsoft.com/billing/orders. If it still is not shown correctly, contact Microsoft Support.
• If the Microsoft account email or password is forgotten, use the Sign-in Helper.

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