ReactOS 0.4.5

4.5 out of 5 stars 4.5 (364 votes)

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Windows (All) / Open Source / 12,590 downloads

ReactOS is a free open source operating system based on the best design principles found in the Windows NT architecture (Windows versions such as Windows XP, Windows 7, Windows Server 2012 are built on Windows NT architecture). Written completely from scratch, ReactOS 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 use it as alternative to Windows without the need to change software you are used to.

Reviews of ReactOS

  1. 3 out of 5 stars
    Aegis69

    Reviewing 0.4.3 (Nov 17, 2016)

    Interesting as a research project, but Linux + Wine is a far more robust and stable platform to run windows apps on than this ever will be.

  2. 3 out of 5 stars
    Aegis69

    Reviewing 0.3.16 (Feb 6, 2014)

    And I thought the development pace of linux desktop was glacial, this one is moving 10 times slower than that.

  3. 5 out of 5 stars
    tomkelly

    Reviewing 0.3.15 (Aug 22, 2013)

    reactos is solid

  4. 5 out of 5 stars
    wogget

    Reviewing 0.3.14 (Sep 23, 2012)

    Pretty awesome for a free OS that can run Windows programs and still be fast with 1 GB RAM in VirtualBox. Works great!

  5. 5 out of 5 stars
    drkstlkr

    Reviewing 0.3.13 (Nov 29, 2011)

    Many of you who wonder why ReactOS is still using an "outdated Windows XP" interface are completely missing many valuable points of ReactOS. For one, most of your novice Windows users are very comfortable with Windows XP, and HATED Vista's newer interface, let alone trying to learn a new OS, such as Linux. ReactOS is a viable option for people who are still using an older computer, possibly who's hard drive crashed, and can no longer order recovery discs from the manufacturer. Most people could afford another new hard drive for around $70, but don't want to spend $200 for the retail version of Windows Vista/7. Many users and companies still use software tailored for Windows XP that have known issues running in Vista/7. Most advanced users wouldn't run ReactOS, so stop looking at it from that narrowed perspective.

Discuss ReactOS

  1. Nov 29, 2011 - 12:29 PM
    drkstlkr

    Many of you who wonder why ReactOS is still using an "outdated Windows XP" interface are completely missing many valuable points of ReactOS. For one, most of your novice Windows users are very comfortable with Windows XP, and HATED Vista's newer interface, let alone trying to learn a new OS, such as Linux. ReactOS is a viable option for people who are still using an older computer, possibly who's hard drive crashed, and can no longer order recovery discs from the manufacturer. Most people could afford another new hard drive for around $70, but don't want to spend $200 for the retail version of Windows Vista/7. Many users and companies still use software tailored for Windows XP that have known issues running in Vista/7. Most advanced users wouldn't run ReactOS, so stop looking at it from that narrowed perspective.

  2. Feb 6, 2009 - 7:46 AM
    bobad

    @DeadFly,

    90% of all computer users disagree with you. Only a few geeks care to learn a new OS, and give up (or have a hassle running) the software they have been relying on for years. You may dream that Linux will make the average computer user happy, but that's not reality.

    ReactOS would be much more acceptable to the masses. Too bad development is so slow. Because of the slow development, it will probably fail.

  3. Feb 5, 2009 - 10:56 PM
    DeadFly

    In the reviews, mackintire suggests that ReactOS could be a replacement for XP when it is retired. I think given the comparatively huge development effort behind Linux, ReactOs has little chance of going mainstream. Linux + Wine + Samba could be a better solution.