Urgent: Copilot Chat History Missing After Upgrade to New Copilot App

Todd Gantzer 5 Reputation points
2026-10-03T22:01:15.3466667+00:00

Hello Microsoft Support,

After upgrading to the new Copilot app, I lost access to my entire Copilot chat history.

Prior to the upgrade, I had a significant number of conversations stored in Copilot. Following the upgrade, my previous chats no longer appear in the chat history.

I am signed in with the same Microsoft account that I used before the upgrade. I have already tried:

  • Signing out and back in
  • Restarting the Copilot app
  • Accessing Copilot through the web browser
  • Checking that I am using the correct Microsoft account

The chat history is still missing.

According to Microsoft's documentation, chats and content should automatically move to the updated Copilot experience. I need assistance recovering my missing conversations and confirming whether my chat history still exists on Microsoft's servers.

Please investigate my account and advise:

  1. Whether my chat history can be restored.
  2. Whether there are any migration or synchronization issues affecting my account.
  3. Whether the chat data is still available and recoverable.
  4. If there is a way to manually trigger a resync of my Copilot content.

These conversations contain important information, and I would appreciate urgent assistance.

Thank you

Microsoft Copilot | Other
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  1. Kai-H 28,065 Reputation points Microsoft External Staff Moderator
    2026-10-04T09:39:51.5+00:00

    Hi, Todd Gantzer

    I’m sorry your conversations disappeared. The updated Copilot app is intended to bring eligible chats over automatically, but missing history can mean the move has not finished. I can’t inspect your account or confirm from this forum whether the chats are still stored or recoverable.

    Here are some suggestions you can try:

    Check Copilot for a“coming soon” message or a link to your previous chats. If that link appears, use it to access and save anything important that is still available.

    If this is a personal Microsoft account, sign in to the Microsoft privacy dashboard. Go to Privacy > Empower your productivity > Copilot > Your Copilot app activity history > Copilot apps, then select Export all activity history. Review the downloaded CSV for your older conversations. This may help establish whether the activity is available to export, but it does not restore chats to the app. Do not select Delete all activity history.

    Contact Microsoft Support and explain that the history is missing on both web and app despite the checks you’ve completed. Include the approximate upgrade date, any sync message, and whether the export contains the missing chats. Ask support to investigate the account’s migration and recoverability.

    Also I wouldn’t recommend resetting or reinstalling the app as a recovery step.

    Please be advised that this is a user-to-user support forum. Moderators and contributors, including external Microsoft employees, are not allowed to directly interfere with Microsoft product features or access back-end systems. Our role is limited solely to providing technical guidance on reported incidents, requests, or ideas. 

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  2. Todd Gantzer 5 Reputation points
    2026-10-05T11:48:27.2433333+00:00

    Thank you, the chats are there in my history, but still not showing up in my copilot app

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