In a nutshell: Microsoft has prototyped Aion, a web-based AI-native operating system, whose insights are apparently flowing into Windows 11.
A leaked video from 2024 shows Microsoft’s experimental operating system Aion, which is entirely designed around the AI assistant Copilot and uses a reduced Windows codebase. The project demonstrates a fundamentally different approach to operating system architecture in which intelligent agents are centrally anchored in the shell.
The video recorded in 2024 was published on Discord and shows Microsoft’s internal experiments with an AI-centric operating system codenamed Aion. The technical foundation consists of a reduced Windows codebase called Win3 and the web browser Microsoft Edge. This architecture deliberately forgoes support for classic Win32 applications in order to achieve faster updates, longer battery life and increased security. To access conventional desktop programs, one variant provides cloud streaming via Windows 365. In parallel, there is a design that builds on Windows 11 and allows native applications.
Aion’s user interface fundamentally deviates from classic Windows versions and positions Copilot as a central interface element. A multimodal input field serves as the primary gateway to files, programs and web search. In the leaked video, Microsoft describes Aion as a “web-based agent operating system that natively integrates Copilot into the core of the shell”. A new taskbar feature called Spaces automatically groups open applications and web pages by topic and allows related windows to be opened with a single click.
Microsoft sources confirm the authenticity of the three-minute video and date the material to 2024. Aion was conceived as a purely experimental project to explore the possibilities of a user interface optimized from the ground up for AI agents. It remains unclear whether Microsoft ever intended to market Aion as a standalone product. However, industry observers believe that the insights gained from the project will flow into the further development of Windows 11, which increasingly integrates features for autonomous AI agents.
Source: www.it-daily.net · Published 3 July 2026
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