ReactOS is a free and open source operating system designed to be compatible with Windows software and drivers. While it’s been under active development since 1999, the operating system is still ...

ReactOS 0.4.15 is the largest ReactOS release yet, focusing on compatibility, bug fixes, and improved system stability. This update introduces new features like registry mechanisms, enhanced security, ...

There have been several attempts to make an unencumbered version of Windows. ReactOS is perhaps the best-known. You could also argue that Wine and its progeny, while not operating systems in the ...