A leaked 2024 video of Microsoft's Project Aion shows an experimental AI-focused Windows desktop where Copilot replaces the Start menu and only Microsoft Edge web apps can run, with the narration stating "Aion is an example of a web-based agent OS that natively builds Copilot into the core of the shell" and that it is "built from Microsoft Edge." However, based on conversations with Microsoft executives over the past few months, the article's author doubts Microsoft plans to launch such a Copilot-focused AI operating system that exclusively runs web apps, noting it is not the focus right now. It is unclear whether Aion was an experimental internal project or something Microsoft ever planned to release, and the company has not commented. Microsoft is instead planning to integrate agentic AI more deeply into Windows after making Windows 11 less annoying, with AI agents able to use Windows desktop applications rather than forcing a Copilot-driven web experience. Microsoft also has plans for an AI-centric OS called Project Solara, meant for smaller devices like badges and smart displays, not traditional Windows PCs.