By default, conversations with Copilot Chat are saved and accessible in your conversation history. You can view, search, and revisit past interactions at any time.
Microsoft will only use your conversations for training generative AI models or personalization if you explicitly opt in.
Conversations are retained for up to 18 months by default. You can delete individual conversations or your entire history whenever you choose. Copied or uploaded files are stored securely for 30 days and then automatically deleted. Uploaded files are not used to train Copilot’s underlying models.
Personalization and Memory
When personalization is enabled, Copilot remembers non-sensitive details you share—such as your name, interests, and ongoing projects—to tailor future responses. Sensitive attributes like age, gender, race, political views, and health status are never used for personalization.
Personalization settings are on by default (where available). You can:
- View and edit what Copilot remembers about you
- Turn personalization off to clear existing memories
- Turn personalization back on to resume tailored experiences
Your personalization choices do not affect whether you receive targeted ads; ad personalization is controlled separately in your Microsoft account settings.