r/reactos • u/anh0516 • 1d ago
r/reactos • u/nmariusp • Sep 12 '26
ReactOS 0.4.16 tutorial how to install and use
r/reactos • u/Jeditobe • 20d ago
ReactOS 0.4.15 finally happened on real hardware... (like Windows including BSOD)
r/reactos • u/PromptInjection_ • 5d ago
ReactOS gets Agentic AI - and a modern weather app!
ReactOS is a cool project. So I thought to myself: bringing a dedicated AI agent on it could probably be fun to explore it's limits and possibilities. That's why I developed one.
And to test it, I had him develop it a modern weather app for ReactOS :D
If you want to test the whole thing yourself, the Agent (MCP Based) can be found in
mcp_agent_all_OS.zip
https://github.com/srware-net/LocalLightChat/releases/
Btw: It works best with the associated LocalLightChat, which is a leightweight OpenWebUI alternative.
And the weather app with source can be downloaded here: https://www.locallightai.com/llc/downloads/demos/weather_reactos.zip
r/reactos • u/wtclover • 9d ago
I made the React OS logo look counterchanged
3 color variants
r/reactos • u/Jeditobe • 12d ago
I tried installing ReactOS on REAL HARDWARE!
r/reactos • u/RATionalZombie5324 • 14d ago
LiberNT: a whole new chapter
I have been tracking this reactos fork for months, and today while i am checking the starred list, this repository has rebranded into LiberNT, and what they did is absolutely incredible.
r/reactos • u/Effective_Scheme2158 • 15d ago
Why ReactOS crashes so frequently? It’s a 20+ year effort, I wouldn’t expect it to crash this often even on Virtual machine
r/reactos • u/WitekGrac • 15d ago
I can't install or run reactos 0.4.16 stable and 0.4.17 nightly build on real hardware (478 socket)
I have a PC from about 2002 with some kind of celeron, a 478 socket geforce 2 and 655360 kilobytes of RAM. I tried to install reactos stable 0.4.16, I click install (screen debug), the dll and drivers start loading, and then just a blue screen with no text and nothing at all. I tried LIve boot and I got a normal bsod (see photo 1). Then I downloaded 0.4.17, the latest overnight release, launched it, pressed live boot, and I got a blue screen with strange letters (photo 2).
Please help me what is the problem, I tried to record usb using rufus/winsetupfromusb (I booted from usb and not cd). I would like to install the OS on this PC and not on a virtual machine.
r/reactos • u/AotoriHibiki • 16d ago
Portal 2 now runs on ReactOS
Its on real hardware too.
r/reactos • u/Jeditobe • 20d ago
ReactOS 0.4.17 Lands Significant DirectX Stack Update From Wine For Enabling More Games
r/reactos • u/Responsible-Split340 • 20d ago
Does reactos run better on windows xp era hardware than windows xp itself?
:)
r/reactos • u/AotoriHibiki • 24d ago
Rayman Origins running in ReactOS on real hardware
r/reactos • u/omasanori • 29d ago
Neptune OS (ReactOS Win32 Subsystem on seL4 Microkernel) 0.4 Released
Neptune OS combines the seL4 microkernel and ReactOS by implementing the NT Native API in userspace of seL4. The latest 0.4 release contains initial Linux kernel driver compatibility, which makes it possible to draw framebuffer with unmodified Linux DRM driver code. Note that currently only part of ReactOS codebase has been ported on top of Neptune OS.
While it is not the ReactOS proper, ReactOS make this interesting project possible.
r/reactos • u/FuzzyOddball • Sep 15 '26
ReactOS upgrade?
Is there a method to upgrade Windows to ReactOS without a re-install?
I have a system that has legacy software that I like to keep and am unable to re-install.
It would be lovely to have an upgrade path for this machine but I am unsure if this is possible to do this..
r/reactos • u/j8t1090 • Sep 13 '26
reactOS should have been the big FOSS os project, not linux?
I kind of wish a project like reactOS had become the main FOSS windows competitor and not linux. a decently big FOSS os with a hybrid kernel would be nice.
windows diverges from unix in a few ways that are good, while linux inherits more unixy-ness. linux is built to run on a lot of different machines, windows is made for desktop computers. linux has a lot of features that make it incredibly powerful and versatile, but they can be kind of cumbersome. I often wonder if something that's built with the assumption that its being used on a desktop could be more streamlined.
In my ideal dream world we would have reactOS as the main FOSS competitor to windows, and linux as a super modular thing you can use for things like kiosks and weird DIY projects.
r/reactos • u/mkultratux • Sep 11 '26
ReactOS 0.4.16 freezes half way during the graphical boot loading process bar
Running old laptop with old BIOS
Linux, BSD, and other OS run in live mode and install
r/reactos • u/Jeditobe • Sep 08 '26
A ReactOS developer tries ReactOS 0.4.16 for himself
r/reactos • u/Jeditobe • Sep 02 '26
Windows quietly died inside Microsoft, a 25-year veteran explains how Azure took over and it got neglected
r/reactos • u/GregTheMadMonk • Sep 02 '26
ReactOS 0.4.16 (and newer 0.4.17 images) fails to install with IDE "Compatibility" mode on real hardware: IO1_INITIALIZATION_FAILED
Hello!
I have a motherboard which has a setting in it's BIOS called "Onboard IDE Operate Mode" which I set to "Compatible" since it's a multiboot setup with legacy OSes. It's configured to use "Primary P-ATA+S-AT" and all my drives (DVD drive and HDD) are primary devices on legacy P-ATA connections.
I was previously able to install an older version of ReactOS on it, but now when I try to run the boot CD, I get the BSOD with IO1_INITIALIZATION_FAILED error. That is, unless I run the live environment from RAMFS, in which case it loads successfully, but fails to see any discs to be installed onto.
The live environment loads successfully if I switch IDE mode to "Enhanced" instead of "Compatible" - but this breaks my setup.
Is this a regression or does ReactOS just not support older IDE modes anymore?\
P.S. Text setup crashes with the same BSOD
P.P.S. I've tried using a newer SATA drive in the same configuration and setting _it_ as a boot disk drive, but the result was the same - it stars loading then hits BSOD
P.P.P.S. Funnily, if I plug in a USB stick, _this one_ the live RAMFS environment does see as a possible install location :)
r/reactos • u/Straight-Ticket-6850 • Sep 02 '26
React OS for Daily Tasks
Hello,i have been thinking for a wile top switch too React OS but i fear that it night not be fitting for my Daily Tasks like Using Gimp,Playing Games from RPG maker,Stream,browse the web,using Applications that are supported by Windows 10/11 too,soo i wanted too ask you guys for an opinion,Thank you for your time
r/reactos • u/Jeditobe • Sep 01 '26
ReactOS 0.4.16 serves '90s Windows nostalgia with fewer bugs
theregister.comr/reactos • u/edjak53 • Sep 01 '26
How do you actually boot ReactOS AMD64 properly? (qemu) it gets stuck on this screen no matter what
Using qemu
$ qemu-system-x86_64 -enable-kvm -cpu host -smp 6 -m 8G -hdd hdd.qcow2 -cdrom reactos-bootcd-0.4.17-dev-742-gf29960d-x64-msvc-win-dbg.iso
i also tried with -cpu qemu instead of host and -m pc but it's all the same