logo
search
Document Editing Problems

How to Fix Track Changes Showing Unknown Author in Word

Phi Hung VoPhi Hung Vo Sep 30, 2026 869 views

Question details

Users experience an issue in Microsoft Word where tracked changes display the author as 'Unknown', and attempting to remove document properties fails to properly standardize or anonymize the author name.

How to Fix Track Changes Showing Unknown Author in Word
Product
Microsoft Word
Device & OS
not provided
Scenario
Anonymizing a document with tracked changes or reviewing edits from multiple authors.
Observed behavior
The author name displays as 'Unknown', and utilizing the Document Inspector to remove personal information does not resolve the display issue consistently.
Before you start

Ensure you have saved a backup copy of your document before altering document properties or privacy settings, as anonymizing author data cannot always be undone.

Solution 1Recommended

Disable the 'Remove Personal Information' Setting

If you want actual author names to appear instead of 'Unknown', you must disable the privacy setting that strips this data upon saving.

Microsoft Word has a built-in privacy feature designed to remove identifying information from file properties when the document is saved. If this feature is accidentally enabled, all new tracked changes and comments will have their author changed to 'Unknown' upon saving.

1
Open Trust Center

Click on the 'File' tab in the top ribbon, select 'Options' at the bottom, and then click on 'Trust Center' in the left pane. Finally, click the 'Trust Center Settings' button.

2
Access Privacy Options

In the Trust Center window, select 'Privacy Options' from the menu on the left.

3
Disable Document Inspector Privacy

Look for the checkbox labeled 'Remove personal information from file properties on save' under the Document-specific settings section. Uncheck this box.

4
Save and Verify

Click 'OK' to close the dialog boxes, save your document, and add a new tracked change to verify that your author name now appears correctly.

Disable the 'Remove Personal Information' Setting
Existing Tracked Changes: Disabling this setting will only affect future edits. Any tracked changes that have already been saved as 'Unknown' cannot be reverted to their original author names.
Free Microsoft Office alternative

Use WPS Writer for Reliable Document Collaboration

If Microsoft Word's tracked changes and privacy settings are causing workflow interruptions, try WPS Office. It is a highly compatible, free, and lightweight alternative that allows you to cleanly track changes, manage document metadata, and collaborate without unexpected 'Unknown' author errors.

  1. 1. Download and Install: Download WPS Office for free from the official website and complete the lightweight installation.
  2. 2. Open Your Word Document: Launch WPS Writer and open your existing .docx file directly to view any existing tracked changes.
  3. 3. Manage Track Changes: Navigate to the 'Review' tab on the top ribbon to easily turn Track Changes on or off, and manage user metadata reliably.
Fully compatible with Microsoft Word (.docx, .doc) formats and existing tracked changes.Clean and intuitive Track Changes features for seamless collaboration.Free to use with a lightweight installation package and familiar user interface.Reliable document property management for easy and predictable anonymization.
microsoft office alternative - wps office

Frequently Asked Questions

Why do my tracked changes suddenly show as 'Unknown' in Word?

This typically occurs when the 'Remove personal information from file properties on save' option is enabled in Word's Trust Center. When you save the document, Word automatically strips the author's identity to protect privacy.

How can I reveal the original author if it already says 'Unknown'?

Unfortunately, once the personal information has been stripped and the document is saved, the author metadata is permanently deleted. You cannot recover the original author names for those specific edits.

Does WPS Office support Microsoft Word's tracked changes?

Yes, WPS Office is fully compatible with Microsoft Word's Track Changes feature. You can open a .docx file in WPS Writer and continue to view, accept, or reject edits made by others without losing original metadata.

How do I properly anonymize a document for blind peer review?

To intentionally anonymize a document, go to File > Info > Check for Issues > Inspect Document. Run the inspector, and then click 'Remove All' next to 'Document Properties and Personal Information'. All tracked changes will then display as 'Author' or 'Unknown'.