Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Benjamin Wahrer,
If your school account works on your educational laptop and in some Microsoft services, but Office says "That Microsoft account doesn't exist," it suggests that the account itself is likely valid, but there may be an issue with how you're signing in to Office on your PC.
In the meantime, you can try the following:
Step 1: Sign out of all Office applications.
Step 2: Remove any old school or Microsoft accounts from:
Settings > Accounts > Email & accounts
Settings > Accounts > Access work or school
Step 4: Restart the PC > Go to Windows Settings > Accounts > Access work or school and sign in to Office again using your school account.
Note: Ensure that the email address is typed correctly (please double-check for any typos or errors.)
If the issue persists after trying the troubleshooting steps, since this is your school account, I recommend that you reach out to your school's IT administrator. They can verify that your account exists in the school's Microsoft 365 tenant, confirm that the appropriate Microsoft 365 Education license is assigned, and check for any account or sign-in issues that may be preventing Office from recognizing the account correctly. For reference: How do I find my Microsoft 365 admin?
Please understand that as a forum member, I do not have access to your school's Microsoft 365 environment or account information, so I'm unable to verify the account status directly. Your IT administrator will be in the best position to investigate and resolve any tenant-specific issues.