License & Subscription Issues

Fix Microsoft 365 Apps Cannot Edit Files After Moving to a New Mac

Maira Mehtab Sep 20, 2026 869 views

Question details

The user is unable to edit documents in Microsoft 365 applications after migrating to a new MacBook due to incorrect account authentication.

Product: Microsoft 365
Device & OS: macOS
Scenario: Migrating software and data to a new Mac computer and setting up Office applications.
Observed behavior: Microsoft 365 applications such as Word open in a non-editable or read-only state because the wrong Microsoft account was selected during the initial sign-in.

Before you start

Ensure you have the exact login credentials (email and password) for the Microsoft account that holds your active Microsoft 365 subscription before proceeding.

Solution 1Recommended

Sign In with the Correct Microsoft Account

Resolve the non-editable state by signing out of the incorrect account and signing back in with the one associated with your active subscription.

Microsoft 365 verifies your license based on the account you use to sign in. If a wrong account without an active subscription is selected during the setup on a new Mac, the apps will default to a read-only mode.

Open a Microsoft 365 App

Launch Microsoft Word or any other Office application on your Mac.

Sign Out of the Current Account

Click on the application name (e.g., 'Word') in the top macOS menu bar and select 'Sign Out'.

Sign In with Licensed Account

Restart the application. When prompted, click 'Sign In' and enter the email address and password of the Microsoft account that originally purchased the subscription.

Activation Successful: Once the correct account is authenticated, the editing features will immediately unlock across all Microsoft 365 apps on your Mac.

Solution 2

Contact Microsoft or Admin Support

Use this solution if you cannot identify the correct account or if your work/school license requires administrator approval.

Free Microsoft Office alternative

Use WPS Office as a Seamless Alternative on Your New Mac

If you are locked out of your Microsoft 365 subscription or want to avoid recurring license issues when changing devices, WPS Office offers a free, lightweight, and highly compatible alternative for macOS.

1. Download for Mac: Visit the official WPS Office website and download the macOS version.
2. Install the App: Open the downloaded file and drag the WPS Office icon into your Applications folder.
3. Edit Instantly: Launch WPS Office and directly open your Microsoft 365 documents to start editing without complicated license checks.

Fully compatible with all Microsoft Office formats (.docx, .xlsx, .pptx) so you can seamlessly open your existing files.Free to use for standard document editing, spreadsheets, and presentations.Lightweight application that installs quickly and runs smoothly on your new MacBook.Familiar user interface requiring no learning curve or complex account migrations.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Microsoft Word say 'Action Not Allowed' or 'Read-Only' on my new Mac?

This usually occurs when the Microsoft 365 suite is not properly activated. After moving to a new Mac, you must sign in with the specific Microsoft account that has an active subscription tied to it. Logging in with a free or wrong account restricts editing capabilities.

How do I check which Microsoft account has my active subscription?

You can log into your Microsoft account dashboard via a web browser and navigate to the 'Services & subscriptions' tab. This page will display all active licenses and billing information associated with that specific account.

Can I migrate my Microsoft 365 license from an old Mac to a new Mac?

Yes. Microsoft 365 licenses are tied to your user account, not the physical device. You simply need to install the applications on the new Mac and sign in with your licensed account to activate them.

What should I do if I forgot the email associated with my Office subscription?

Try signing in with any alternative personal, work, or school email addresses you own. If you still cannot locate the account, you will need to contact Microsoft Support and provide your billing or purchase details to recover the account information.

Login & Account Issues