Enthusiast @XenoPanther has reduced a running copy of Windows 7 to just 69 megabytes, significantly smaller than the typical installation size of tens of gigabytes. This stripped-down version is mostly non-functional, lacking essential system libraries and graphical interface elements, but can still load the desktop and run simple console applications. Minimal versions of operating systems are useful for virtual machines and test environments. Microsoft previously attempted to create a lightweight version called Windows Server Nano, which was around 400 megabytes. Despite Windows 7 being outdated and no longer receiving security updates, the minimal file set can still run older applications.