I have Windows 11 and cannot launch Copilot?

Repair and then reset Copilot from Windows 11 Settings; this targets damaged app data that uninstalling and reinstalling may not replace.

1. Repair or reset Copilot

1. Open Start > Settings > Apps > Installed apps.
2. Find Copilot, select the … menu, and choose Advanced options.
3. Select Terminate if shown, then select Repair.
4. Try opening Copilot from the Start menu.
5. If it still does not open, return to the same page and select Reset.

Resetting removes Copilot’s local app data, so you may need to sign in again. Microsoft recommends Repair first and Reset if repair does not work.^1^

2. Update Windows and Microsoft Store components

Since reinstalling Copilot did not help, do not reinstall it again yet.

1. Go to Settings > Windows Update > Check for updates.
2. Install all available updates and restart Windows.
3. Open Microsoft Store > Library > Get updates.
4. Allow updates for Microsoft Store, Copilot, and related components to finish.
5. Restart the PC and test Copilot again.

These are Microsoft’s recommended steps when an installed Store app does not work.^2^

You can test both documented launch methods:

• Open Start, search for Copilot, and select the app.
• Press Windows key + C or the dedicated Copilot key, if your keyboard has one.^3^

3. Run the Copilot connectivity troubleshooter

If Copilot opens briefly, remains blank, or may be blocked while starting:

1. Open Start, search for Get Help, and launch it.
2. Search for Copilot connectivity troubleshooter.
3. Run the troubleshooter and apply any suggested remedies.

It checks for firewall rules and other connection blockers.^4^

4. Repair Windows components only if the app still will not start

If Reset, Windows updates, Store updates, and the troubleshooter do not resolve it, use Windows 11’s non-destructive repair reinstall:

1. Connect the PC to power and the internet.
2. Open Settings > System > Recovery.
3. Under Fix problems using Windows Update, select Reinstall now.
4. Complete the installation and restart.

This reinstalls the current Windows version and repairs system files and components while preserving installed apps, personal files, and settings.^5^

The option can be absent on work- or school-managed devices, systems older than Windows 11’s 2022 annual update, or devices without the required later servicing updates. In that case, contact the organization’s IT administrator rather than changing update policies.

If the repair reinstall also fails to fix Copilot, press Windows key + F and submit a report through Feedback Hub. Include whether clicking Copilot produces no window, a brief flash, a blank window, or an Event Viewer error; those distinctions are needed to identify the failing component.

References

1. [Windows 11](https://support.microsoft.com/windows/apps/repair-apps-and-programs-in-windows#summary)
2. [Windows 11](https://support.microsoft.com/accounts-billing/fix-problems-with-apps-from-microsoft-store)
3. Welcome to Copilot on Windows
4. Copilot troubleshooters | Microsoft Support
5. Fix issues by reinstalling the current version of Windows