The Library, in Copilot's left-hand bar, is where Copilot stores what it creates: your Pages, canvases, generated images and other creations. It is storage, not a working feature, and it does not run prompts. Pages are saved there automatically, and a page survives even if you delete the chat it came from.
- It has nothing to do with a prompt library, the names are just confusing.
- A notebook is different, because it holds data and its own instructions.
- The Mistral Library works more like a notebook without instructions.
More in Microsoft Copilot
Can my colleagues or IT see my Microsoft Copilot chats?
Your colleagues cannot see your Copilot chats. Microsoft 365 Copilot only works inside your own permissions, so nobody can ask it about your mail or files. Your organisation can still keep and search Copilot conversations for compliance and audit through Microsoft Purview, the same way it can with email, so treat work chats as work records.
Does Microsoft Copilot warn me if I paste Personal Data?
Not reliably, so do not depend on it. Some organisations set up data loss prevention policies that can block or flag sensitive information, but there is no general alert that catches every name or personal detail you paste in. Checking what you share with Copilot is always your own responsibility.
Can I refuse to be recorded or transcribed in a Teams meeting?
Only by leaving the meeting. When the organiser starts recording or transcription, Teams shows a consent message. You can accept and stay, or decline and be disconnected, but you cannot opt out while staying in the call. The same applies to people from inside and outside your organisation.