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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).

Project Samples

ReactOS 0.3.14 VLC+FoxIT+Thunderbird ReactOS 0.3.14 mIRC + WinSPC ReactOS 0.3.14 Firefox 10 ReactOS 0.3.14 LibreOffice 3.5 ReactOS 0.3.14 Winamp+Creative WaveStudio ReactOS 0.3.14 Notepad++

Project Activity

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Categories

Operating System Kernels, Operating Systems

License

GNU General Public License version 2.0 (GPLv2), GNU Library or Lesser General Public License version 2.0 (LGPLv2)

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ReactOS Web Site

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User Ratings

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support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

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  • easeltine Posted 2026-10-24
    5 out of 5 stars
    I am using the newer version 4.16. The fact that I was able to get Office 2007 installed and working is a game changer for me! This never version seems to be running better! I am using Firefox 52ESR and MyPal for Internet browsers. This puts this operating system very close to Microsoft XP in my opinion. Ok, I have used ReactOS for a long time and have never had as much success on it until now. I have never been able to install a Microsoft Office until now!
  • phr3ak- Posted 2025-04-12
    3 out of 5 stars
    I tried the current ISO in VMware, ReactOS-0.4.15-release-1-gdbb43bbaeb2-x86-iso.zip, and unfortunately, the file download doesn't work either. Browsing works, but when I try to download a file, the download doesn't start. It would be great if you could include a modern browser in the system...
  • xatu21 Posted 2024-02-07
    4 out of 5 stars
    Es un gran proyecto, lo revise a fondo en una de sus primeras versiones, incluso hice una presentracion sobre el. Demostranto que se puede hacer un so libre sin usar linux.
  • ritzmannshof Edited 2023-02-02
    5 out of 5 stars
    Hi, nice implementation and for me a refreshing gimmick. Ultimately, formatting the hard drive in Btrfs was successful and the operating system booted successfully. That's fun. All the best!
  • dindinhernawan Posted 2023-01-17
    5 out of 5 stars
    very good where nowadays there are rarely projects that support old hardware, and the system features are also capable
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Additional Project Details

Awards

Operating Systems

WINE

Intended Audience

Advanced End Users, Developers

User Interface

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

Programming Language

Assembly, C

Related Categories

Assembly Operating System Kernels, Assembly Operating Systems, C Operating System Kernels, C Operating Systems

Registered

2000-06-04
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