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Welcome to ReactOS

Imagine running your favorite Windows applications and drivers in an open-source environment you can trust.
That's the mission of ReactOS!

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Recent News

ReactOS Build Environment 2.2 released

The ReactOS Build Environment (RosBE), our curated set of compilers and build tools, has just received a major upgrade. After more than 7 years of using the same and now ancient GCC 4.7.2, ReactOS is finally going to be built with the help of a modern compiler (GCC 8.4.0). Among other things, the new version better detects programming mistakes like improperly sized buffers, and comes with improved error messages to pinpoint such mistakes to the corresponding position in code.

March 2020 meeting minutes

2020-03-26 19:00 UTC Mattermost meeting channel Proceedings Meeting started at 19:05 by Colin Finck. Point 1: Achievements and Future Outlook Point 2: GSoC 2020 Status Point 3: Drop one theme from the default package Point 4: Hire a developer for dev-web interface and/or devops for our infrastructure Point 5: GitHub PR situation Point 1: Achievements and Future Outlook Stanislav Motylkov is currently preparing a cumulative update for his SMBIOS parser code in sysdm.

ReactOS 0.4.13 released

The ReactOS Team is pleased to announce the release of version 0.4.13. As with prior releases, keywords are noted representing the release itself and highlighting key improvements. In this particular case, the 0.4.13 version shows the results of significant hard work to bring improvements to the USB stack, further development on the Xbox port boot process, an Explorer File Search for the Shell module, as well as many other changes.

The New ReactOS Website

Today, I am pleased to announce the launch of the new ReactOS website. Several old and new ReactOS members have worked on it since Hackfest 2018 with the goal of providing a lean website with a focus on development activity and contributions. It was born out of frustration with the old site, which made following ReactOS progress unnecessarily difficult. With its CMS also long past its due date, it was decided to create a modern ReactOS website from scratch using the excellent Hugo static site generator.

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