Microsoft is actively testing a significant integration of its AI assistant, Copilot, directly within Windows 11's File Explorer, moving beyond its current implementation where selecting 'Ask Copilot' typically launches a separate application. This forthcoming feature, dubbed 'Chat with Copilot,' has been uncovered by Windows Insider community members, including @PhantomOfEarth and @a_donglee, in recent preview builds such as 26220.7523 and 26220.7535. Currently, File Explorer offers a basic Copilot integration via the right-click context menu or a toggle in the 'Home' tab, which directs users to the standalone Copilot app to process queries about selected files. However, the new findings indicate Microsoft's intention to embed Copilot directly into the File Explorer interface, likely as a sidebar or pop-up pane. References to internal names like 'AppAssistantLaunch' and corresponding string resources such as 'Chat with Copilot' and 'Detach Copilot' strongly suggest a native chat experience within File Explorer itself. This deeper integration aims to provide a more streamlined and contextual AI assistance for file management, allowing users to interact with Copilot about documents, images, and other files without leaving the File Explorer window. While the feature is present in Insider builds, it is not yet fully functional or officially announced for general release, meaning its final design, availability, and purpose could still evolve or even be canceled. Nevertheless, this development signifies Microsoft's ongoing strategy to weave AI capabilities more pervasively into the Windows operating system.