We are pleased to announce the release of ReactOS 0.4.15! This release offers Plug and Play fixes, audio fixes, memory management fixes, registry healing, improvements to accessories and system …

It allows you to explore ReactOS in a temporary environment that will be reset in a restart. Please note, that ReactOS is still in alpha and gives no guarantee of stability, safety of your files or working at all.

Being part of a Worldwide Community, as ReactOS is, will boost your own personal skills to a highest new level. Working teamed with people from different countries will enhance your team-working, …

ReactOS is a free and open-sourced operating system based on the Windows NT architecture, providing support for existing applications and drivers, and an alternative to the current dominant consumer …

The first consideration to make is whether to install ReactOS on a dedicated testing machine or in a contained environment, such as running on an emulator without direct disk access.

ReactOS is a free and open source operating system written from scratch. Its design is based on Windows in the same way Linux is based on Unix, however ReactOS is not Linux.

Mar 21, 2025 · I started making a name for myself in the ReactOS community by contributing several shell improvements. In May of 2024 I was added to the core development team and in March of 2025 …

ReactOS currently only supports a single core as ReactOS does not yet have an SMP-enabled kernel. However, ReactOS does run very quickly on a single core system so the lack of this feature is not as …

Welcome to the ReactOS Development Wikinavigation search

Download ReactOS Builds ReactOS Builds are automatically built by our BuildBot each time a change is committed to the ReactOS Repository. This way, they incorporate latest fixes. However, they are not …