A family of Microsoft word processing software products for creating web, email, and print documents.
First test Replace in a new blank document; if it works there, remove the original document’s editing restriction, but if it is disabled in every document, diagnose Word in its default startup state and then repair Office.
1. Determine whether the document is read-only
- In Word, select File > New > Blank document.
- Type a short sentence.
- Press Ctrl+H, complete both Find what and Replace with, and check whether Replace becomes available.
If Replace works in the blank document, the original file is not currently editable:
- If the upper-right mode menu says Viewing or Reviewing, select it and choose Editing.
- Go to File > Info > Protect Document. If Always Open Read-Only is selected, select it again to clear that setting.
- If a Protected View banner appears, select Enable Editing, if available.
- If editing is controlled by the document owner or your organization, request edit permission; that restriction cannot necessarily be removed locally.^1^
- For a shared file locked by another desktop user, wait for that user to close it, or use File > Save As and edit a separate copy.^2^
Once the document is editable, the normal sequence is Home > Editing > Replace, enter text in both fields, and then select Replace or Replace All.^3^
2. If Replace is disabled in every document
Close Word, restart Windows, and test again. This resolved the same symptom in a Microsoft Q&A case; the accepted next step when restarting did not help was an Online Repair.^4^
Before repairing, test Word without automatically loaded add-ins and global templates:
- Press Windows+R.
- Enter:
winword /a - Press Enter, create a blank document, and test Ctrl+H.
The /a switch starts Word without automatically loading add-ins or global templates.^5^
If Replace works in this mode, investigate add-ins under File > Options > Add-ins rather than repairing the document.
3. Repair Office if the problem remains
Close all Office applications, then:
- Windows 11: Right-click Start > Installed apps.
- Windows 10: Right-click Start > Apps and Features.
- Locate Microsoft 365 or Office, select … > Modify or Modify.
- Select Online Repair > Repair and complete the prompts.
- Restart Windows and test Replace in a blank document.
Online Repair repairs the entire Office suite, even when only Word is affected.^6^
References
- Enable editing in your document | Microsoft Support
- File is locked by another user and commands are grayed out | Microsoft Support
- [Windows](https://support.microsoft.com/word/training/find-and-replace-text-in-word)
- In Word, home use, find and replace does not work - Microsoft Q&A
- How to troubleshoot problems that occur when you start or use Word | Microsoft Support
- Repair an Office application