Fix Word 365 Cannot Open DOCX Files on Windows 10
Question details
A specific Windows 10 computer running Microsoft Word 365 is unable to open DOCX files, despite the same files opening normally on other workstations.

- Product
- Microsoft Word 365
- Device & OS
- Windows 10
- Scenario
- Attempting to open local, server-hosted, or emailed DOCX files on a specific computer workstation.
- Observed behavior
- Word fails to open the DOCX documents, and standard workarounds like Open and Repair, modifying storage locations, and read-only mode do not resolve the issue.
Verify that your Windows OS and Office 365 apps are fully updated, and ensure you have administrator privileges before running repair tools or modifying Trust Center settings.
Launch Word in Safe Mode to Disable Add-ins
Run Microsoft Word without background add-ins to identify if a third-party extension is blocking the document from opening.
Often, incompatible or outdated COM add-ins can conflict with Word's ability to read and process DOCX files on a local machine.
Press the Windows Key + R on your keyboard to open the Run command window.
Type winword /safe into the run box and press Enter or click OK.
If the file opens successfully, go to File > Options > Add-ins. Select COM Add-ins from the Manage dropdown, click Go, uncheck all add-ins, and restart Word normally.

Perform an Online Repair of Microsoft 365
Use the built-in Windows repair utility to fix corrupted Microsoft 365 installation files.
Clear Protected View and File Block Settings
Temporarily bypass strict Trust Center security protocols to determine if they are preventing the DOCX file from opening.
Try WPS Office to Open Your DOCX Files Easily
If Microsoft Word 365 continues to experience local errors preventing your files from opening, WPS Office serves as a powerful, free, and lightweight alternative. It offers native compatibility with Microsoft formats, ensuring you can resume work immediately without troubleshooting complex Windows profile or Office installation issues.
- 1. Download the software: Visit the WPS Office website and download the free installation package for Windows.
- 2. Install WPS Office: Run the installer and follow the quick on-screen instructions to set up the application.
- 3. Open your DOCX file: Right-click the DOCX file that won't open, select 'Open with', and choose WPS Office to view and edit your document.

Frequently Asked Questions
Why does a DOCX file open on one computer but not another?
This discrepancy typically indicates a local issue rather than a problem with the file itself. Common causes include conflicting third-party add-ins, corrupted Windows user profiles, or overly strict Trust Center security settings on the affected machine.
Will reinstalling Microsoft 365 fix the document opening issue?
Often, running an Online Repair is sufficient to fix corrupted application files. If repairing the installation and creating a new Windows user profile both fail, a complete uninstallation and clean reinstallation of Microsoft 365 may be necessary.
Can third-party security software block Word files from opening?
Yes, overactive antivirus or firewall software can sometimes intercept files accessed from local servers or Outlook emails, mistakenly treating them as threats and preventing Word from reading them properly.




