ReactOS Icon



An operating system based on the best Windows NT design principles

4.6 Stars (138)
24,995 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 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
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User Reviews

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

    The first thing I got was a "can't load boot driver 'system32\drivers\cdfs/sus' error

    Posted 10/24/2016
  • 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

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

    ReactOS is totally broken garbage that doesn't work. I tried using the official ReactOS VMWare virtual machines. ReactOS crashed when I tried to put a shortcut to Firefox on my desktop. I rebooted. Then I tried to update Firefox. ReactOS crashed again. ReactOS is a cool idea, but terrible in practice. Don't waste your time with this garbage.

    Posted 04/04/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    У этого проекта нет будущего. Уж лучше kolibri развивать

    Posted 03/03/2015
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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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