Office Activation Errors

How to Fix Word Selection Locked and Product Activation Failed Errors

Emma Brown Sep 29, 2026 869 views

Question details

The user is unable to edit Microsoft Word documents due to a locked selection error and a product activation failure message.

Microsoft Word Product Activation Failed

Product: Microsoft Word
Device & OS: not provided
Scenario: Attempting to edit an existing document or create a new document in Microsoft Word.
Observed behavior: Word displays a 'We cannot make this change because the selection is locked' message when trying to edit, and new documents show 'Product activation failed'.

Before you start

Ensure you have your Microsoft account credentials ready and an active internet connection to verify your Office subscription status.

Solution 1Recommended

Verify and Reactivate Your Office License

When your Microsoft Office subscription expires or loses its activation status, Word enters reduced functionality mode, locking all selections to prevent editing.

The most common reason for the 'selection is locked' error is an inactive Office license. Reactivating your software will restore your ability to edit documents.

Open Account Settings

Open Microsoft Word, click on 'File' in the top-left corner, and select 'Account' from the left sidebar.

Check Activation Status

Look under the 'Product Information' section. If it says 'Product Activation Failed' or 'Subscription Expired', you need to reactivate.

Sign Out and Sign Back In

Click 'Sign out' under your user information, then click 'Sign in' and enter the Microsoft account credentials associated with your active subscription.

Update Office

Click on 'Update Options' next to Office Updates and select 'Update Now' to ensure your software is synced with the latest license data.

Check Subscription Online: You can verify the status of your Microsoft 365 Personal or Office 2024 license by logging into account.microsoft.com/services.

Solution 2

Remove Document Protection

If your Office is fully activated but you still cannot edit a specific file, the document itself might be protected, read-only, or restricted by permissions.

Free Microsoft Office alternative

Edit Your Documents Instantly with WPS Office

If your Microsoft Office subscription has expired and you need to edit documents right away, WPS Office is a completely free, lightweight, and highly compatible alternative that requires no complex activation.

1. Download WPS Office: Visit the official WPS website and download the free version of WPS Office.
2. Open Your Document: Launch WPS Writer and open your locked .docx file directly.
3. Start Editing: Edit and save your document immediately without dealing with subscription activation errors.

Seamlessly open and edit Microsoft Word (.docx) formats without formatting lossFree to use for basic document editing and creationFamiliar user interface makes it incredibly easy to switchLightweight installation takes up minimal system resources

microsoft office alternative - wps office

Frequently Asked Questions

Why does Word say the selection is locked?

This error typically occurs when your Office license or trial has expired, putting Word into reduced functionality mode where you can only view and print files. It can also happen if the specific document is protected or marked as final.

Can I edit a document if my Office trial expires?

No. Once a Microsoft Office trial expires, the software enters reduced functionality mode. You will need to purchase a subscription, reactivate with a valid product key, or use a free alternative like WPS Office to resume editing.

How do I fix the Product Activation Failed error?

Go to File > Account in Word and sign in with the Microsoft account linked to your purchase. If your subscription is active, running the Microsoft 365 activation troubleshooter in the Windows Get Help app can also resolve syncing issues.

Microsoft Office Error Codes