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ReactOS Foundation

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4.1
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2002
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ReactOS

29 reviews

ReactOS is a free and open-source operating system designed to be compatible with Windows applications and drivers. It aims to provide a familiar user experience by replicating the look and feel of Windows, enabling users to run their favorite Windows software in an open-source environment. ReactOS is developed from scratch, ensuring that it is not a derivative of Linux, but a standalone system with its own architecture. Key Features and Functionality: - Windows Compatibility: ReactOS is capable of running a wide range of Windows applications and drivers, offering users the flexibility to use software they are accustomed to. - Familiar Interface: The operating system mirrors the appearance and functionality of Windows, reducing the learning curve for new users. - Open Source: Being open-source, ReactOS allows users and developers to view, modify, and distribute its source code, fostering a collaborative development environment. - Active Community: The project is supported by a global community, providing opportunities for collaboration, skill enhancement, and contribution to the development of the operating system. Primary Value and User Solutions: ReactOS addresses the need for a free and open-source operating system that maintains compatibility with Windows software and drivers. This is particularly beneficial for users and organizations seeking an alternative to proprietary systems without sacrificing the ability to run essential Windows applications. Additionally, ReactOS serves as an educational platform for those interested in learning about operating system development and Windows internals, offering practical experience in a real-world project.

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ReactOS Foundation Reviews

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HASHAMI M.
HM
HASHAMI M.
Attended Lucknow Institute of Technology, Lucknow
04/30/2026
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Verified Current User
Review source: Organic
Incentivized Review

Easy-to-Use, Lightweight Windows-Like OS with Great Driver Compatibility

ReactOS is an open-source operating system. It’s easy to download and install, and its graphics feel very similar to Windows. It can run Windows executable files and apps, and it has an old-school Windows look from the early 2000s, like Windows XP. Overall, it’s very user-friendly and easy to use and understand, without demanding high system resources. It’s also highly compatible with Windows drivers and can be used to run older, classic Windows applications. It doesn’t require much hardware, and technically it can be an alternative to the modern Windows 11 look if you want a more classic Windows-like experience. It’s easy and convenient to use, not resource-hungry, and it works very easily in VirtualBox as well. The version I used felt stable, and I can see it being used as an everyday OS.
Verified User in Hospital & Health Care
AH
Verified User in Hospital & Health Care
04/29/2026
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Verified Current User
Review source: Organic Review from User Profile

Free, Open-Source Windows Alternative That Cuts OS Licensing Costs

ReactOS is an alternate to windows and offers free and open source operating system designed to run windows compatible applications. It offers most of the Windows familier features and saves OS license cost at the same time.
Verified User in Broadcast Media
UB
Verified User in Broadcast Media
01/30/2026
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Review source: G2 invite
Incentivized Review

A Lightweight Open-Source Platform for Windows-Compatible Legacy Software

What I like best about ReactOS is its goal of being fully compatible with Windows applications and drivers while remaining open-source and lightweight. It offers a familiar Windows-like environment without licensing costs, gives transparency and control over the OS, and is especially useful for learning, experimentation, and running legacy software on modest hardware.

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Amsterdam, North Holland

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@reactos

What is ReactOS Foundation?

ReactOS Foundation is an organization dedicated to the development and promotion of ReactOS, an open-source operating system designed to be compatible with Microsoft Windows applications and drivers. The foundation supports the ReactOS community by providing resources, organizing development efforts, and fostering collaboration among developers and volunteers. Its goal is to create a free and open-source alternative to Windows, allowing users to run Windows software without relying on a proprietary operating system.

Details

Year Founded
2002
Website
reactos.org