Not cleanly. You can delete chats and saved memories, but you cannot make Copilot forget one item from a meeting transcript or a document it has already processed. The safest approach is prevention: do not start transcription or share files when sensitive information could come up, and be open about it if it happens.
- Delete saved memories under Settings, Personalisation.
- If sensitive data was shared by mistake, tell the people responsible for data protection.
More in Microsoft Copilot
What is a Microsoft 365 tenant?
A Microsoft 365 tenant is your organisation's own private space in the Microsoft cloud. Your email, Teams, files and Microsoft 365 Copilot all run inside it, and your data stays in that space instead of being pooled with other customers. That is why the work version of Copilot is safer than a consumer chatbot.
Is Copilot Chat-Only Mode Safer for Sensitive Documents?
No, the mode makes no difference. Whether you use chat only or agent mode, Copilot reads the document once you give it access. The real decision is whether that document should go into Copilot at all, so check your organisation's rules on which data classifications are allowed before you open it with AI.
Can Copilot fill in a Word Template?
Yes. With a Microsoft 365 Copilot licence, open the template in Word, reference your source document in the Copilot side panel and ask it to populate the template with that data. Word can even grow a section to fit. With Copilot Chat alone or another chatbot it works, but it is clunkier.