ReactOS is a free, open-source operating system designed to run Windows applications and drivers in a familiar, trustable environment.
Run Windows apps on a free open-source OS
ReactOS is an open-source operating system built to let you run many of your favorite Windows applications and drivers, all in a familiar environment. If you've ever wished for a free alternative to Windows that still supports key software and hardware, ReactOS is designed with that goal in mind.
You can download ReactOS and try it out on your computer, explore its features, or get involved with the community to help improve the project. The site provides news, FAQs, and a helpful forum, making it easy for both new and experienced users to get started or contribute. Whether you're a developer, enthusiast, or just curious, ReactOS gives you the tools and support to explore a unique Windows-compatible OS.
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