Copilot Not Working in Microsoft Edge? Try These Fixes

If Copilot in Microsoft Edge will not open, sign in, load a response, or use the current page, first determine whether the problem is with the Copilot service, your Microsoft account, or the browser. Follow these fixes in order and retest after each one.

1. Test Copilot outside the sidebar

Open Copilot in a normal Edge tab. If it fails there and in another browser, the problem is probably not the Edge sidebar. Check the internet connection, disable a VPN temporarily if permitted, and look for a Microsoft service incident. If Copilot works in a tab but not the sidebar, continue with the browser-specific checks below.

2. Confirm the button is enabled

Open Edge Settings > Copilot and AI and make sure the Copilot toolbar button is enabled. Managed work or school devices may hide or disable the feature through policy. In that case, contact the administrator rather than trying to bypass the restriction. This guide also explains where the Copilot button setting is located.

3. Restart Edge and Windows

Save your work, close every Edge window, and reopen the browser. If that does not help, restart the computer. A full restart clears stuck browser processes and completes pending updates more reliably than closing one tab.

4. Update Microsoft Edge

Open Settings and more > Help and feedback > About Microsoft Edge. Edge checks for updates on this page. Install any available update, then select Restart.

5. Check the account and profile

Verify that the sidebar is signed in to the intended Microsoft account. Sign out of Copilot and sign back in. If you have personal and work profiles, switch to the profile that has access. License, age, region, and organizational policy can affect availability.

Create a temporary Edge profile from Settings > Profiles > Add profile and test Copilot there. If it works, the problem is likely confined to the original profile's cookies, settings, or extensions.

6. Disable extensions for a test

Open edge://extensions and temporarily turn off privacy blockers, script blockers, VPN extensions, and security add-ons. Restart Edge and test again. Re-enable extensions one at a time to identify the conflict; do not leave required organizational security controls disabled.

7. Delete only Copilot site data

Deleting all cookies signs you out of most websites, so start with the affected site:

1. Open Settings > Privacy, search, and services.
2. Open the Cookies or site-data controls and choose to view all stored site data.
3. Search for Copilot and Microsoft sign-in domains used by the failed page.
4. Delete the relevant entries, restart Edge, and sign in again.

Microsoft's Edge cookie guide provides the current menu path. Developer Tools are not required for routine cookie removal.

8. Clear cached files

Press Ctrl + Shift + Delete, select an appropriate time range, and clear Cached images and files. Leave passwords and autofill data unchecked unless you intentionally want to remove them. Restart Edge and try Copilot again.

9. Check cookie and tracking restrictions

Blocking all cookies can prevent sign-in and page features from working. In Edge privacy settings, make sure sites are allowed to save and read cookie data. If strict tracking protection or third-party-cookie blocking causes the problem, add the minimum site exception needed rather than lowering privacy protection for the entire browser.

10. Repair Edge on Windows

If Edge itself is unstable, open Windows Settings > Apps > Installed apps, find Microsoft Edge, open its three-dot menu, and select Modify or Repair. Save work first and keep the computer connected to the internet.

What the result tells you

If none of these steps work, record the exact error text, Edge version, account type, and whether the issue occurs in a normal tab. Provide those details to Microsoft support or your organization's administrator. Avoid reset or reinstall procedures until simpler, reversible tests have ruled out account and service problems.