https://arstechnica.com/gadgets/2018/04/microsoft-appears-to-be-making-yet-another-windows-variant-windows-10-lean/ >Just as Microsoft gets rid of one Windows SKU, it seems to have created another one to take its place. The short-lived Windows 10 S version has been replaced by a mode that can be applied to regular Windows, but it appears that there is already a successor: the latest Insider preview build for Redstone 5, due for release in the second half of this year, has an install option for "Windows 10 Lean," as found by Lucan. >Windows 10 Lean appears to live up to its name: an installation is about 2GB smaller than Windows 10 Pro, and it is missing a bunch of things, such as desktop wallpaper, Registry Editor, the MMC management console, and more. Lucan reports that Lean does not seem to apply the same restrictions as S Mode, and as such it is capable of running both Universal Windows Programs from the Store and traditional Win32 applications.