ReactOS is a free and open-source operating system for x86/x64 personal computers intended to be binary-compatible with computer programs and devices. Developed by Aleksey Bragin
License: Open Source
ReactOS aims to be a free and open-source replacement for Windows, offering compatibility with Windows applications while still in development, making it less stable. In contrast, Xubuntu is a fully functional Linux distribution based on Ubuntu, known for its user-friendliness and extensive software support, making it a reliable choice for general use.