Fork me on GitHub

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!

Development

Get in touch

ReactOS in action view more screenshots
Download ReactOS 0.4.14 or Donate
Missing something in the release? Try nightly builds instead.

Recent News

Google Summer of Code 2022 - Call for contributors

by ReactOS Team

March 13, 2022

We are proud to announce that ReactOS has been accepted into the 2022 Google Summer of Code program. The GSOC program is a great opportunity for a fresh contributors looking to join the Open Source and Free Software movement. This year we are looking for new contributors who want to enhance skills in kernel development and NT architecture. Our team consists of skilled mentors who are going to guide eager students with ReactOS architecture and development practices.

ReactOS will be on Chemnitz Linux Days 2022 (Online event)

by EmuandCo

March 7, 2022

ReactOS will participate with an own booth on CLT 2022. It will be held on this Saturday and Sunday. Starts at 9:30 CET and ends at ~18:00 CET on both days. The whole thing will be held online and to make you at least feel a bit like you are there in real they once more use the WorkAdventure platform. We plan to show ReactOS of course and stuff that works.

ReactOS 0.4.14 released

by ReactOS Team

December 16, 2021

The ReactOS Team is pleased to announce the release of version 0.4.14. As with every other release, we’re regularly noting improvements and updates to keep you in touch with what is being done in ReactOS. In this release, improvements range from FreeLoader fixes, Shell features, kernel fixes, NetKVM VirtIO bringup, further work on the Xbox port and support for NEC PC-9800. Note that it took us over a year to get this release in shape and fix regressions.

Newsletter 101 - July 2021 news

by Extravert34

August 1, 2021

Hello ReactOS followers! This report covers changes in the project during February-July 2021. And we definitely have some things to highlight! amd64 build is getting more stable Timo Kreuzer (tkreuzer) worked hard on various parts of the kernel and HAL, fixing issues here and there. Structured Exception Handling (SEH) support for the amd64 architecture was finished, various bugs around the kernel are fixed. A major issue with interrupt handling in HAL was also fixed in May, which finally allowed a semi-stable boot in a virtual environment.

Live Activity

    More...