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Microsoft 365 Error Codes

Fix Microsoft Office Error 0xc0000142 When Opening Word

Huda QurayshiHuda Qurayshi Oct 10, 2026 869 views

Question details

The user is unable to launch Microsoft Office applications like Word due to an application error code 0xc0000142, and previous attempts with SFC, basic repair, and reinstallation have failed.

How to Fix Microsoft Office Error 0xc0000142 When Opening Word
Product
Microsoft Office / Microsoft 365
Device & OS
not provided
Scenario
Launching Microsoft Word or other Office applications.
Observed behavior
The application fails to start and displays the application error code 0xc0000142.
Before you start

Ensure your Windows operating system has the latest updates installed and temporarily disable any third-party antivirus software, as background security scans can sometimes block Office services from launching properly.

Solution 1Recommended

Use the Microsoft Support and Recovery Assistant (SaRA)

Perform a complete and clean uninstallation of Microsoft Office to remove corrupted residual files that standard uninstallations leave behind, which often cause persistent 0xc0000142 errors.

Since standard reinstallation and Office repairs may not fix registry corruptions, the official Microsoft SaRA tool helps to completely wipe Office traces before you install it fresh.

1
Download the SaRA Tool

Visit the official Microsoft Support website and download the Microsoft Support and Recovery Assistant (SaRA) uninstall tool.

2
Run the Uninstallation Wizard

Launch the downloaded setup file, agree to the terms, and select 'Office' from the list of troubleshooting options. Choose the option that says you have Office installed but cannot uninstall it.

3
Select the Office Version

Select the version of Microsoft Office or Microsoft 365 you wish to remove, then click 'Next' and follow the prompts to completely wipe it from your computer.

4
Restart and Reinstall

Restart your computer once the tool finishes the process, then log in to your Microsoft account online to download and reinstall a fresh copy of Office.

Use the Microsoft Support and Recovery Assistant (SaRA)
Clean Install Requirement: Using the SaRA tool guarantees that no corrupted configuration files from your previous installation interfere with your new Office setup.
Free Microsoft Office alternative

Try WPS Office for a Hassle-Free Experience

If Microsoft Office error 0xc0000142 persists and disrupts your productivity, consider switching to WPS Office. It is a lightweight, reliable, and completely free alternative that allows you to open, edit, and save Word documents without dealing with complex installation or registry errors.

  1. 1. Download and Install: Visit the official WPS Office website to download the free, lightweight installer and complete the setup in minutes.
  2. 2. Open Your Files: Launch WPS Office, click on 'Open' on the sidebar, and select your existing .docx or .xlsx files to instantly resume your work.
Lightweight installation free of complex system errors like 0xc0000142Fully compatible with Microsoft Word (.docx), Excel (.xlsx), and PowerPoint (.pptx) formatsFamiliar tabbed interface for a seamless transitionAll-in-one suite with robust built-in PDF editing capabilities
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Frequently Asked Questions

What exactly is Microsoft Office Error 0xc0000142?

Error 0xc0000142 is an application initialization failure. It means the program could not start correctly, usually due to corrupted system files, outdated software frameworks (like .NET), or conflicts with other software running on your computer.

Why did repairing or reinstalling Office normally not fix the 0xc0000142 error?

Standard uninstallation methods via the Control Panel often leave residual registry keys and system files behind. If these leftover files are corrupted, the error will persist even after reinstalling. This is why using the official Microsoft Support and Recovery Assistant (SaRA) for a clean removal is recommended.

How can I access my Word documents urgently if Office refuses to open?

If you need immediate access to your files while troubleshooting the 0xc0000142 error, you can use a free alternative like WPS Office or upload your files to OneDrive to edit them using the free web version of Microsoft Word.

Can third-party antivirus software cause error 0xc0000142?

Yes, aggressive third-party antivirus or firewall applications can sometimes block critical background processes required by Microsoft Office applications, triggering initialization errors. Temporarily disabling them can help isolate the issue.