Reactos
The latest Reactos coverage — news, analysis, and updates from the WindowsNews.AI desk.
ReactOS Kernels Up: Open-Source Windows Clone Swallows Its First NT6 System Call
The ReactOS project has integrated its first NT6-era kernel routine, marking a pivotal shift in the two-decade-old effort to build an open-source operating system that runs Windows applications and...
ReactOS Makes Historic Leap With First NT6 System Call, Opening Door to Vista-Era Compatibility
Developers behind ReactOS, the open-source project aiming to build a binary-compatible Windows replacement, reached a milestone on July 1, 2026, by merging the operating system’s first NT6-era...
ReactOS Plays Valve's Half-Life on a Dell OptiPlex: A Leap for Windows NT Compatibility
Valve's 1998 classic Half-Life ran natively in-game on ReactOS, the open-source Windows NT clone, on June 10, 2026, using actual hardware—a Dell OptiPlex with a Sandy Bridge Core i5 processor. The...
ReactOS ARM64 Alpha Boots on Raspberry Pi 5 and UEFI Hardware
The open-source ReactOS project has reached a notable milestone: a working, albeit alpha-quality, ARM64 build that can boot on standard UEFI Arm hardware. This includes booting successfully inside...
ReactOS at 30: The Open-Source Windows Alternative's Journey and Future
Thirty years is an extraordinary lifespan for any volunteer-driven open-source project, but for ReactOS—an ambitious effort to create a binary-compatible, open-source alternative to Microsoft...
ReactOS at 30: The Open-Source Windows NT Clone's Journey, Current State & Future
On January 22, 2026, the ReactOS project quietly celebrated a remarkable milestone—three decades since its first commit. This open-source initiative, which began as a response to Microsoft's...
ReactOS 0.4.15: Open Source Windows Alternative Reaches New Compatibility Milestone
The ReactOS project has reached a significant milestone with the release of version 0.4.15, marking one of the most substantial updates in the open-source operating system's 25-year development...
ReactOS Advances GPU Compatibility with WDDM Driver Experiment
The ReactOS project has embarked on a groundbreaking journey toward modern GPU compatibility with its initial experimental implementation of the Windows Display Driver Model (WDDM), marking a...
ReactOS Achieves WDDM Graphics Milestone with BasicDisplay.sys Implementation
The ReactOS project has achieved a significant breakthrough in its quest for Windows compatibility, successfully demonstrating a working Windows Display Driver Model (WDDM) display path using...
Free Linux Distros Offer Ukrainians a Lifeline as Windows 10 Support Ends
The October 14, 2025, end-of-support deadline for Windows 10 is more than a calendar milestone—it’s a hard stop on security patches, technical assistance, and feature updates for one of...
Beyond Linux: 9 Open-Source OS Alternatives with Unique Features & Histories
When discussing open-source operating systems, Linux invariably dominates the conversation. However, the FOSS ecosystem is far more diverse, with numerous alternatives offering unique architectures,...
ReactOS 0.4.15 Revives Legacy Windows Apps with Major Compatibility Boost
The open-source ReactOS project has reached another milestone with the release of version 0.4.15, bringing improved compatibility and performance to this unique Windows-compatible operating system....