MY Taskbar Co-PILOT has stopped working and data has not transferred to browser based copilot as promised URGENT REQUEST!

Your Projects should now appear as Notebooks, and missing chats should be recovered first by using the exact original sign-in method and completing any migration prompt before escalating the account-level synchronization issue to Microsoft Support.

1. Check Notebooks and the exact sign-in identity

1. Open Copilot and select the account/profile menu.
2. Confirm that it is the same personal account and the same sign-in method originally used:
   • Microsoft account → use Microsoft sign-in.
   • Google account → select Continue with Google.
   • Apple account → select Continue with Apple.
   Entering the same email through a different sign-in method may not open the same Copilot identity.
3. In the left navigation, select Notebooks. Microsoft renamed Projects to Notebooks, and existing Projects should migrate there.
4. Open Chats or expand the left sidebar and search for a distinctive phrase from one of the missing conversations.
5. Look for an in-app migration message, including a link to access existing chats, and follow it.
6. Fully quit Copilot—not just minimize it—then reopen it. Refresh the page if using the web version.

Microsoft says personal-account chats and other eligible content move automatically, but migration can take time and may temporarily differ between devices.^1^

2. Check whether the account is still on the previous Copilot experience

This is particularly relevant if more than one personal account was used:

1. Open a new InPrivate/Incognito browser window.
2. Go to https://copilot.microsoft.com/.
3. Sign in using the exact affected account and original sign-in method.
4. Observe what happens:
   • If the browser remains on copilot.microsoft.com, the account has not yet moved. Continue accessing the existing content there while migration is pending.
   • If it redirects to copilot.com, the account has moved or is completing migration. Check Notebooks and Chats there.

Also check OneDrive under the same personal account. Files shared with or generated by the standalone Copilot app are moved to OneDrive.^1^

The update is intended to bring personal-account chat history and most content forward automatically; basic Copilot chat does not require payment, although higher limits and premium features can require a subscription.^2^

3. Escalate immediately if the content is missing everywhere

If the same Projects/Notebooks and chats are absent from both the Windows app and web after the checks above, this needs an account-level investigation. There is no documented user-facing force sync or restore chats control.

On Windows:

1. Open Start → Get Help.
2. Enter:
   Copilot personal account chats and Projects missing after updated Copilot app migration
3. Select Contact Support.
4. Choose Microsoft Copilot or the closest Microsoft account/Copilot category.
5. Request chat or callback, depending on the options displayed.^3^

Include:

• Approximate date and time the content disappeared.
• Windows and Copilot app versions.
• The original sign-in method, without posting passwords or account credentials.
• Confirmation that Projects/Notebooks and chat history are missing in both the app and web.
• Any migration or synchronization message shown.
• Screenshots with personal information hidden.
• A request to investigate the personal-account content migration/backend synchronization state.

A closely matching case—history disappearing after the Copilot upgrade across app and web—was escalated to Microsoft Support and the affected user reported that Support fixed it.^4^

Also submit diagnostics from Copilot → … → Send feedback → Report a problem, including when the issue started, device/OS details, and a screenshot.^1^

Protect the remaining recovery options

Until Support completes its investigation:

• Do not delete or clear Copilot activity history.
• Avoid resetting app data, unlinking accounts, or deleting chats.
• If any content appears in one client, immediately copy or export it and save important files separately.

Microsoft Q&A is a public forum and cannot access the account or restore backend data; only Microsoft Support can investigate the affected account. Restoration cannot be guaranteed until Support determines whether the content remains available.

References

1. Troubleshoot Your Content in the Updated Copilot App | Microsoft Support
2. Copilot app updates for personal, work, and school accounts
3. Get Help for Microsoft personal account users | Microsoft Support
4. All history chats disappeared after upgrading Copilot