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ReactOS® is a free, modern operating system in alpha stage, based on the design of Windows...

  • Windows

ReactOS® is a free, modern operating system in alpha stage, based on the design of Windows XP/2003. Written completely from scratch, it aims to follow the Windows architecture designed by Microsoft from the hardware level right through to the application level.

This is not a Linux based system, and shares none of the unix architecture.

The main goal of the ReactOS project is to provide an operating system which is binary compatible with Windows. This will allow your Windows applications and drivers to run as they would on your Windows system. Additionally, the look and feel of the Windows operating system is used, such that people accustomed to the familiar user interface of Windows would find using ReactOS straightforward. The ultimate goal of ReactOS is to allow you to remove Windows and install ReactOS without the end user noticing the change. More Info »


OS & Utilities

Links to official ReactOS sites

Official Website
ReactOS was added by cheutger in Nov 2009 and the lastest update was made in Nov 2014. There is a history of activites on ReactOS in our Change Log and Activity Log. It's possible to update the information on ReactOS or report it as discontinued, duplicated or spam. If you want a nice widget to put on your website check these out.

ReactOS Reviews

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Negative Review by coth about ReactOS Also mentioning: Windows 95 Windows XP May 2014

Years going, but still in very early alpha. Highly unstable - lots of BSODs, apps crashes, graphical and UI corruptions. Drivers cannot be installed as Update Driver button still does nothing in Device Manager. Even most functions of basic Explorer still doesn't work, including buggy taskbar. Start Menu is similar to Windows 95 instead of more useful Windows XP like with app searchbar and most used apps.

Still dozens of years away from beta stage.