In the context of AOW, the RootFS is a pre-built, minimal Android 13 (or later) image that Microsoft ships. This is not an emulator image (like Android Studio’s AVD); it is a production-ready, stripped-down Android environment designed to run in a lightweight virtual machine.
While Project Astoria was eventually shelved, the "Aow" tech didn't vanish. It found a second life in tools like aow rootfs
A common concern is: "Can a malicious Android app break out of the RootFS into Windows?" In the context of AOW, the RootFS is
: Just as one roots a physical phone, "rooting" the AoW rootfs grants administrative privileges within the subsystem. In the context of AOW