How Microsoft 365 Copilot Chat history works

Want to go back to that chat you had with Microsoft 365 Copilot Chat earlier in the week? Chat history is here for you.

How do I find my chat history?

You'll find your chat history in the Microsoft 365 Copilot app.

  1. Go to Copilot Chat and sign in with your Microsoft 365 account.

  2. In Copilot Chat, find the Chats list on the left-side navigation.

  3. Select a chat conversation to revisit.

    1. Read through the chat or continue the chat with Copilot Chat.

  4. Next to the chat’s title, select ... More to:

    1. Rename chat icon Rename: Allows you to rename the conversation.
    2. Outline of a book with plus sign Move to notebook: Adds the chat conversation to Copilot Notebooks .
    3. Icon used on button in Journal that deletes content Delete: Deletes the conversation from chat history.

Tip

If you'd like to clear all of your Copilot activity history, see Delete your Microsoft 365 Copilot activity history.

How do I turn off Copilot personalization based on chat history?

Copilot Memory automatically collects key details from your previous chat conversations and remembers it for future conversations.

If you don’t want Copilot Memory to use your previous chats to respond to future prompts, complete the following steps:

  1. Go to Copilot Chat and sign in with your Microsoft 365 account.
  2. At the top right of Copilot Chat, select ... Settings and more and select  Machine cogs to access Copilot settings  Chat settings from the menu.
  3. In the Chat settings window, select  People with machine cogs for Copilot personalization settings  Personalization from the left-side menu.
  4. In the Chat history tile, move the toggle to the Off position.

Caution

  • Turning off Chat history personalization deletes any inferences Copilot made from previous chats.
  • This data is removed from the Copilot system after 30 days, ensuring your privacy and control over what’s remembered.
  • If the toggle is turned on within the 30-day grace period, Copilot overrides the deletion so that conversation data isn’t lost.

How does Copilot use my chat history?

Copilot may use context from previous chat conversations to improve future responses by making inferences about what is important to remember. For example, if you once mentioned you’re planning a business trip to Japan, it might suggest travel tips when you ask, “What should I pack?⁠”

Copilot doesn’t remember every detail from your previous chats, only what’s useful for personalizing its responses to your questions and tasks.

If there’s a chat conversation you don’t want Copilot to reference, you should delete that conversation.

More ways to work with Copilot Chat