Top Alternatives to ReactOS

Windows 7 is a personal computer operating system developed by Microsoft.

Linux Mint is a Linux based free operating system.

Arch Linux is an open source operating system based on Linux kernel.

Fedora is an operating system based on the Linux kernel.

openSUSE formerly SUSE Linux and SuSE Linux Professional, is a Linux-based project and distribution sponsored by SUSE Linux GmbH and other companies.

elementary OS is a Linux distribution based on Ubuntu.

Xubuntu is an elegant and easy-to-use operating system.

FreeBSD is an operating system for a variety of platforms which focuses on features, speed, and stability.

Lubuntu is a fast and lightweight operating system. The core of the system is based on Linux and Ubuntu.

Kubuntu is an official flavour of the Ubuntu operating system which uses the KDE Plasma Desktop instead of the Unity graphical environment.

Gentoo Linux is an computer operating system distribution

CentOS is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform.

Manjaro Linux or simply Manjaro, is a Linux distribution based on Arch Linux. Manjaro Linux is based on the rolling release update model similar to that of Arch Linux and uses Pacman as its package manager.

Red Hat Linux, assembled by the company Red Hat, was a widely used Linux distribution until its discontinuation in 2004.

Haiku is a free and open-source operating system compatible with the now discontinued BeOS.

Puppy Linux is an operating system and lightweight Linux distribution that focuses on ease of use and minimal memory footprint.

TrueOS (PC-BSD or PCBSD), is a Unix-like, desktop-oriented operating system built upon the most recent releases of FreeBSD-CURRENT.

OpenBSD is a free and open source Unix-like computer operating system descended from Berkeley Software Distribution (BSD).

Ubuntu MATE is a free and open-source Linux distribution and an official derivative of Ubuntu.

Slackware is a Linux distribution originally based on Softlanding Linux System.

Zorin OS is a powerful operating system designed to make your computer faster, more secure and easier to use.

SliTaz GNU/Linux is a lightweight GNU/Linux distribution, community-based, suitable for use on older hardware and as a Live CD or Live USB.

Edubuntu is an official derivative of the Ubuntu operating system designed for use in classrooms inside schools, homes and communities.

Deepin Screenshot is an elegant screenshot application.

Solus is an operating system that is designed for home computing.

ArchBang Linux is a simple lightweight rolling release Linux distribution based on a minimal Arch Linux operating system with the Openbox window manager.

KDE neon is a rapidly updated software repository.

NixOS is a Linux distribution built on top of the Nix package manager.