Copilot in Word Cannot Rewrite Selected Text: Fix

You select a paragraph in Word, open the Copilot pane, and click Rewrite. Nothing happens, or Copilot returns an error instead of a rewritten version. This problem usually occurs because of a conflict between the Copilot Rewrite feature and Word’s built-in Editor pane, or because the text selection includes unsupported content such as tracked changes or table cells. This article explains the root cause of the failure and provides a step-by-step fix to restore the Rewrite function.

Why Copilot Rewrite Fails on Selected Text

The Copilot Rewrite feature relies on the same text-selection API that Word’s Editor pane uses for grammar and style suggestions. When you have the Editor pane open on the right side of the screen, it intercepts the selection event and prevents Copilot from reading the selected text. This is a design conflict between two Microsoft 365 components that share the same underlying text-access layer.

A second cause is the content type of the selected text. Copilot Rewrite cannot process text that contains tracked changes, comments, or content inside table cells. The feature expects a clean, contiguous block of plain text. If the selection includes any of these unsupported elements, Copilot silently fails or shows a generic error.

A third cause is a transient network or authentication issue. Copilot requires an active internet connection and a valid Microsoft 365 Copilot license. If your token has expired or the connection drops during the request, the Rewrite action will not complete.

Steps to Fix Copilot Rewrite in Word

1. Close the Editor pane
   If the Editor pane is open on the right side of the Word window, click the X in its top-right corner to close it. The Editor pane blocks Copilot from reading the selected text. After closing it, select the text again and click Rewrite in the Copilot pane.
2. Select plain text without tracked changes
   Ensure the selected text does not include tracked changes, comments, or content from inside a table. To remove tracked changes, go to the Review tab, click Accept, and choose Accept All Changes. Then select the clean text and try Rewrite again.
3. Restart Word and sign in again
   Close Word completely, reopen it, and sign out of your Microsoft 365 account by going to File > Account > Sign Out. Sign back in with the same account that has a Copilot license. This refreshes the authentication token and clears any temporary state that might block Copilot.
4. Check your internet connection
   Open a web browser and navigate to office.com. If the page does not load, your internet connection is down. Copilot requires an active connection to process Rewrite requests. Reset your network adapter or connect to a different network.
5. Update Word to the latest version
   Go to File > Account > Update Options > Update Now. Install any pending updates and restart Word. Older versions of Word may have bugs that prevent Copilot from reading the selection correctly.
6. Use the Copilot pane button instead of the right-click menu
   Select the text, then click the Copilot icon on the Home tab. In the Copilot pane, click the Rewrite button. Do not use the right-click context menu option for Rewrite, because that menu item sometimes triggers the wrong internal command.

If Copilot Rewrite Still Fails

Copilot returns a generic error message

If Copilot shows a message such as “Something went wrong” or “Unable to process your request,” the problem is likely a temporary server outage. Wait 15 minutes and try again. You can check the Microsoft 365 Service Health dashboard at admin.microsoft.com to see if there is an active incident for Copilot.

Copilot does not appear in Word at all

If the Copilot icon is missing from the Home tab, your Microsoft 365 tenant may not have Copilot enabled, or your license may not include it. Go to File > Account and verify that your subscription shows “Microsoft 365 Copilot” in the license information. If it does not, contact your IT administrator to assign the correct license.

Copilot rewrites the wrong section of the document

This happens when the document contains multiple sections with similar formatting. Select the exact text you want to rewrite, then press Ctrl+C to copy it. Click inside the Copilot pane and type a prompt such as “Rewrite the following text: ” followed by pasting the copied text. This bypasses the selection mechanism entirely.

Copilot Rewrite vs Manual Rewrite: Key Differences

Item	Copilot Rewrite	Manual Rewrite
Trigger method	Select text + click Rewrite in Copilot pane	Type or paste text into the Copilot prompt box
Text selection support	Fails with tracked changes, tables, or comments	Works with any text you copy and paste
Editor pane conflict	Blocks the feature if Editor pane is open	No conflict because no selection is used
Error handling	Silent failure or generic error	Returns a response or a clear error message

You can now fix the Copilot Rewrite failure by closing the Editor pane, selecting clean text, and using the Copilot pane button. If the issue persists, use the manual rewrite method by copying the text and pasting it into a prompt. For advanced troubleshooting, run the Microsoft Support and Recovery Assistant tool to diagnose Copilot connectivity issues in your tenant.