Google Builds Stealthy AI Layer Across Windows

Google is quietly building an AI layer across Windows itself, a move that could potentially disrupt Microsoft's dominance in the operating system market. According to a recent investigation by RuntimeWire, Google has been developing unreleased infrastructure for continuous Search Live conversations, mouse- and window-triggered AI, File Explorer integrations, selectable tools and models, structured screen extraction, and an Agent Task mode.

The investigation revealed that a Google Windows executable compiled on September 6, 2026 contains code for these features. The build also includes support for continuous voice conversations and visual input, suggesting that Google is adapting its live experience from mobile for use across the desktop.

Google's ambitions appear to extend well beyond desktop search, with the company aiming to meet users at the file, window or system surface where the question already exists. This would allow users to invoke Google's AI without having to open a separate app or return to the floating search box.