Microsoft 365 E3 Account – Activation Guide

Step-by-step activation guide

Sign In to Your Account

This is an account-based subscription, not a product key — sign in at the Microsoft 365 portal with the credentials we email you:

Go to portal.office.com and sign in with the email and password we sent you.
Once signed in, click Install Office to download the desktop apps (Word, Excel, PowerPoint, Outlook) on this device.
Sign in again inside any app with the same account if prompted — this activates it.
Your 5TB OneDrive storage and Copilot access are already enabled on the account, so no separate activation step is needed for either.

Do not change the account password or recovery email — this is a managed subscription account, not a personal Microsoft account.

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