chat history disappeared

Andy Pozzoni 0 Reputation points
2026-11-05T07:27:53.7633333+00:00

Hello
I went to lunch and came back to find what I had done with Copilot in the morning was gone.

Severe server-side migration failure. Current active 3-hour morning session vanished across all interfaces, and the Copilot Activity History in the Privacy Dashboard is registering as entirely empty.

How to restore this history?

Microsoft Copilot | Windows Copilot | App
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  1. AI answer

    2026-11-05T07:28:10.66+00:00

    For a personal Microsoft Copilot account, there is no supported restore path in the provided guidance once chat history is missing from both the Copilot app and the Copilot activity history in the Privacy Dashboard.

    Use these checks first:

    1. Verify the sign-in account. Make sure the same personal sign-in method is being used that was used earlier with Copilot. If the account was created with Google or Apple sign-in, use Continue with Google or Continue with Apple rather than typing the address manually.
    2. Restart the Copilot experience. Quit and reopen the app. On the web, refresh the page.
    3. Check whether content is still moving to the updated Copilot app. Missing chats can occur while chats and content are being moved to the updated experience. If shown, follow any in-app message that provides access to existing chats, then try again later.
    4. Check chat history in Copilot Chat. In the Microsoft Copilot app, open the Chats list in the left navigation and look for the conversation there.
    5. If the history was deleted, it is not described as recoverable in the provided guidance. The documented options are to delete individual chats, export or delete all activity history, and manage privacy controls. No restore workflow is provided.

    For work or school Copilot scenarios, the provided guidance only states that admins can view and manage stored interaction data by using Content search or Microsoft Purview, and users can delete their Copilot activity history from the My Account portal.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. Vikki-T 13,230 Reputation points Microsoft External Staff Moderator
    2026-11-05T12:04:03.39+00:00

    Hi Andy Pozzoni,

    I can understand how frustrating it must be to lose several hours of work without warning, especially when the conversation is also missing from the Privacy Dashboard.

    Unfortunately, the Privacy Dashboard does not provide an option to restore a missing Copilot conversation. Since this is a community forum, contributors cannot access your account, review service-side logs, or recover the session directly. It is also difficult to confirm whether this was a migration failure without an investigation by Microsoft.

    If the conversation does not reappear after some time, please open Copilot, select the three-dot menu, and choose Send feedback > Report a problem. Include the approximate time the session disappeared, your device and operating system, whether the issue occurs in both the app and web version, and any relevant screenshots. These details may help the Copilot team investigate the missing session. Thank you so much for your understanding.     

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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