File Cannot Open

Fix Word 365 Cannot Open DOCX Files on Windows 10

Chanuka GeekiyanageChanuka Geekiyanage Nov 4, 2026 869 views

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.

How to Fix Word 365 Cannot Open DOCX Files on One Windows Computer
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.
Before you start

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.

Solution 1Recommended

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Often, incompatible or outdated COM add-ins can conflict with Word's ability to read and process DOCX files on a local machine.

1
Open the Run dialog

Press the Windows Key + R on your keyboard to open the Run command window.

2
Start Word in Safe Mode

Type winword /safe into the run box and press Enter or click OK.

3
Disable problematic Add-ins

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.

Launch Word in Safe Mode to Disable Add-ins
Free Microsoft Office alternative

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. 1. Download the software: Visit the WPS Office website and download the free installation package for Windows.
  2. 2. Install WPS Office: Run the installer and follow the quick on-screen instructions to set up the application.
  3. 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.
100% compatible with Microsoft Office formats (DOCX, XLSX, PPTX)Lightweight installation that opens files swiftly on any Windows PCFamiliar user interface requires no learning curve to get startedFree built-in PDF editor and comprehensive document management tools
microsoft office alternative - wps office

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.