At Wednesday's Windows and Surface event, Microsoft detailed new AI capabilities for Windows centered on Copilot: local file context, so agents can work with files on the device, and OS-wide actions. A new Windows Search experience brings thousands of actions directly to the taskbar — switching to dark mode, turning on Do Not Disturb, dimming the screen, arranging windows, sending a text message — and an opt-in integration with the new Copilot will surface quick answers inline. The new actions began rolling out to Windows Insiders on October 7.

On the developer side, agents already supporting Microsoft's containment model include OpenAI's Codex, GitHub Copilot, and LM Studio, with Anthropic Claude Code, Perplexity, and Manus planning support. Notably, Microsoft said Meta's Muse personal AI agent is coming soon as a native Windows app with integration. Microsoft Entra will soon distinguish agent activity from user activity in Microsoft Agent 365, with Intune policy support for managing agent process containers on Windows 11.

The push makes safety containment a central theme: Nadella pitched this as the 'birth of the next generation of Windows agentic platforms,' while acknowledging that proving AI agents can be safely contained on personal computers is one of the key challenges.