Use Word’s Open and Repair command on the affected document rather than selecting the repair option in the error message.
Repair the Word document
- Make a copy of the document first and work on the copy.
- Open Microsoft Word without opening the document.
- Select File → Open → Browse.
- Do not select the document from the Recent list.
- Navigate to the document and select it once.
- Select the arrow beside the Open button.
- Select Open and Repair. Microsoft documents this command specifically for files Word cannot open normally because they may be damaged.^1^
- If it opens, immediately select File → Save As, give it a new name, and save it as a new
.docx file.
If Word shows a Document Recovery pane afterward, open the version with the most recent date and time, review it, and use Save As before removing any recovered versions.^2^
If Open and Repair cannot recover it
Check whether an earlier copy is available:
- If the file was stored on OneDrive and AutoSave was enabled, look for a previous version.
- After a crash or power loss, reopen Word and inspect the Document Recovery pane.
- If several recovered copies appear, start with the most recently created one and save it under a different name.
Microsoft also provides Word-specific damaged-document troubleshooting from the Application specific troubleshooting steps section of its file-corruption guidance.^1^
If Word itself—or multiple documents—shows the repair message
That indicates a broader Word/Office problem rather than a problem limited to this document. Run the full Office repair:
- Close all Office applications.
- In Windows 11, right-click Start → Installed apps.
In Windows 10, right-click Start → Apps and Features.
- Find Microsoft 365 or Microsoft Office.
- Select the three dots, if shown, and choose Modify.
- For a Click-to-Run installation, select Online Repair → Repair. For an MSI installation, select Repair → Continue.
- Complete the prompts and restart Windows if requested.
This repairs the entire Office installation, including Word. Online Repair is the more complete option; Quick Repair is the faster, narrower repair.^3^
If Word still cannot start after Online Repair, use Microsoft’s Word startup troubleshooting procedures. Registry-related methods in that article can reset Word settings, so export any referenced registry key before deleting it and restore it if the test does not resolve the issue.^4^
References
- Open a document after a file corruption error | Microsoft Support
- Recover your Microsoft 365 files | Microsoft Support
- [Windows 11](https://support.microsoft.com/office/lifecycle/repair-an-office-application)
- How to troubleshoot problems that occur when you start or use Word | Microsoft Support