How can I add a new PC to my Office365 home subscription when I can't find the passkey?

To add a new PC to your Office 365 Home subscription, you typically do not need a passkey. Instead, you can simply sign in to your Microsoft account associated with your Office 365 subscription on the new PC. Here are the steps you can follow:

1. Install Office: Go to the Office website (office.com) and sign in with your Microsoft account.
2. Download and Install: Once signed in, you can download and install Office on your new PC.
3. Sign In: After installation, open any Office app (like Word or Excel) and sign in with the same Microsoft account to activate your subscription.

If you encounter any issues during this process, such as needing to verify your subscription or if it's not recognized, you might want to check your subscription status in the Microsoft 365 admin center or contact Microsoft support for further assistance.

References:

• Activate Office 365 E3 benefit, activate cloud benefits, or renew Office 365 E3
• Activating Microsoft 365 Apps for Business with a product key

Hello, thank you for reaching out to Microsoft Q&A.

When you mention “passkey,” are you referring to a Microsoft account sign-in method (such as Windows Hello, phone approval, or security key), or are you looking for an Office 365 product key?

To install Office on another computer,

1. Go to https://account.microsoft.com/services and sign in with your Microsoft account.
2. Under your Microsoft 365 (Office 365) subscription, select Install.

This will download the Office setup files to your PC.

Run the setup file, and when prompted, sign in on the new PC using the same Microsoft account that has the Microsoft 365 license.