ReactOS Icon



A operating system based on the best Windows NT design principles

4.7 Stars (144)
8,952 Downloads (This Week)
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ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).

ReactOS Web Site


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I have great expectations for this project. It looks promising.

    Posted 08/22/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I tried to use the reactOS live on VBox and it worked just fine, so I went to install it on my laptop. I downloaded the 0.4.1 bootCD and burned it. When I tried to boot from the cd, it shows up a progress bar like windows xp installation and when it completes the screen becomes black and nothing happens. Hope this will be fixed in next releases.

    Posted 06/20/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    DL-ed and burned ISO image of 0.4.1RC2 to an USB memory stick. Booted up on a Dell Optiplex desktop , with Intel 82Q963/Q965 graphics adapter. Couple of "loading xxx.dll" messages showed up, and screen stayed black ..... This is not ready yet!

    Posted 05/13/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    @mcwerewolf ..pressed by mistake as helpful, well he have NO idea what alpha version is. So it's like Alpha Beta Gold/Final ReactOS is at it's childhood so alpha means tons of bugs, he expected a full fledge OS without issues and why not running under NTFS? ..why peoply "reviewing" things without even know what a review is?

    Posted 02/19/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Although it's been an interesting project and I've long awaited the 0.4 version that made so many promises... it simply I've tried some very simple things, like: Try1: downloading and running Firefox 39 (from their package manager) -- Doesn't draw the window controls on the browser (minimize/maximize/close) It maybe works once, then crashes the browser first THEN locks up ROS on exiting the Mozilla crash reporter. Reboot, launch firefox, try to surf, lockup. reboot, ROS no longer starts. Reinstall ROS, try2: Get Firefox 28 this time from their package manager. Window frame looks better (standard). Go to a website or 2: only default times fonts everywhere. Downloaded something: ROS locks up. Won't boot again. Reinstall ROS, try3: grab a simple Neobook presentation. Try to run it: ROS locks up. Reinstall ROS, try4: OpenOffice 4.1 from their package manager (it's got to be OK for SOMEthing, right?) Won't install because "msiexec.exe" wants "msvcr90.dll". Did anyone even test these packages before including them?... try5: Inkscape (a gtk/ported application): takes forever to install. Try to launch it: process pins the CPU at 100% and nothing happens. Didn't work either. Conclusion: in its current state it is absolute garbage. I don't see how people can give this a high rating because it's obviously not at all working. "alpha state" is very optimistic.

    Posted 02/17/2016
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Additional Project Details

Intended Audience

Advanced End Users, Developers

User Interface

Win32 (MS Windows), Project is a user interface (UI) system, Project is a window manager

Programming Language

Assembly, C




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