Windows Subsystem For Linux Windows maybe the best operating system I have worked. Now that it is a GUI for Linux. Michael Baggett - Imageless-Innovations - Projects Manager About Me The Windows Subsystem for Linux (WSL) is a feature of the Windows operating system that enables you to run a Linux file system, along with Linux command-line tools and GUI apps, directly on Windows, alongside your traditional Windows desktop and apps. WSL2 provides a truly great resource for developers and application testing.