Optimized Windows, designed for enthusiasts.
Optimized Windows. Designed for enthusiasts.
AtlasOS is creating a "kinder" Windows experience. Reducing bloatware and optimizing performance for enthusiasts, gamers, and privacy-conscious individuals.
Invasive and slow
F**k Windows Upgrade to Atlas
Over time, Microsoft has made Windows sluggish, clunky and invasive. Atlas brings life back to Windows, designed to maximize privacy, usability, and performance. We make Windows more responsive and less annoying, with many users also claiming improved framerates, while being configurable and compatible.
Why AtlasOS?
Why choose AtlasOS?
A lightweight modification of Windows, designed for enthusiasts and anyone alike who desires a trusted, performant experience without sacrificing functionality.
Open & transparent
Fully open-source using transparent, with many stargazers on GitHub. Audit and customize everything.
Legal & reversible
Complies with Microsoft's terms (no ISO redistribution). Peace of mind when using AtlasOS.
Benchmarks
AtlasOS vs. Stock Windows
With reduced resource utilization, improved privacy, usability, and performance, why wouldn't you consider making the switch?
CPU usage
We've reduced background CPU spikes significantly. Nothing that you don't need will run in the background.
2‑10% 0%
RAM usage
Thanks to Atlas we've seen ~1.5 GB of RAM usage freed on boot, which can then be allocated to other tasks.
2.9 GB ~1.4 GB
Higher FPS in games
Higher average framerates observed in competitive titles like Valorant on Windows 11.
Ryzen 7 5800X3D, 16GB 3600MHz, RTX 2070 Super
217.5 FPS 365.91 FPS
Trusted by the Pros
The choice for peak performance
Milliseconds decide matches. Top competitors rely on AtlasOS for the ultra-stable, low-latency environment needed to perform at their peak. Gain the edge that comes from eliminating system hitches and ensuring instant response, crucial in both practice and pro play.
-
Smooth performance
Maintain focus with consistent, hitch-free gameplay. -
Instant input
React faster with reduced input lag for critical moments. -
Optimized response
Maximize hardware potential for a tangible competitive edge.
What does our community think?
Our community is fantastic and reviews us with a significant amount of positive feedback. We take great pride in our high rating, which reflects our commitment for improving Atlas.
Many Positive reviews
Reviews 184 - Excellent
VERIFIED COMPANY
Linus Tech Tips
" If you can run Windows with this kind of performance... Jeepers Creepers. "
— Linus Sebastian
(You don't need a new PC - AtlasOS E-Waste PC refresh)
An open-source, GPL-3.0 project
We are an open-source, community-driven project, licensed under GPL-3.0. We would greatly appreciate it if you check it out and, if interested, consider contributing to our vision.
21,043 stargazers on GitHub
FAQ
Frequently asked questions
Which Windows versions are supported?
AtlasOS officially supports Windows 11.
Will my apps keep working?
Yes! AtlasOS is the same as standard Windows, we support all functionality and all anti-cheats. There is nothing stripped from AtlasOS, giving you the same experience as standard Windows.
How do I install AtlasOS?
It is required that everyone choosing to install AtlasOS follows our installation documentation. If you do not follow our installation documentation your installation of AtlasOS will be unsupported.
Can I easily roll back to stock Windows?
No, AtlasOS does not provide a rollback or recovery option. You will need to reinstall Windows, just the same as you would need to reinstall Windows to install AtlasOS. We have a guide on how to do this in our reverting AtlasOS documentation.