Optimized Windows.
Designed for enthusiasts.
ArcOS creates a leaner Windows experience — stripping out bloatware and squeezing every bit of performance from your hardware, for enthusiasts and privacy-conscious users alike.
The latest version is ArcOS v0.0.1 BETA (February 2026)
Tired of bloatware?
Ditch the defaults.
Upgrade to ArcOS.
ArcOS is a modified version of Windows, stripped back to what matters and optimized for raw speed. We make Windows more responsive and less intrusive, with many users reporting faster boot times, lower latency, and cleaner workflows — while remaining fully configurable and compatible with all your existing software.
Performance
By removing unnecessary background processes and telemetry, we free up CPU and RAM for the things that matter — faster boot times, snappier responsiveness, and more headroom for every task.
Usability
By removing Windows' advertising, fixing general annoyances, and streamlining the interface, you'll get a cleaner, faster experience daily.
Privacy
By eliminating most of the platform's notorious tracking, pre-installed apps, and bloatware, ArcOS makes Windows genuinely private.
Benchmarks
ArcOS vs. Stock Windows
With reduced resource utilization, improved privacy, and better performance — why wouldn't you consider making the switch?
CPU usage
2.2× less CPU at idle
RAM usage
1.4 GB less RAM at idle
Boot time
2.7× faster cold boot average
Enhanced privacy by design
Reduces Windows telemetry and data collection by disabling invasive services and implementing privacy-focused policies for minimal data sharing.
Optimized performance
Implements meaningful enhancements for responsiveness and low latency without sacrificing stability or compatibility with your existing apps.
Flexible security
Customize security settings like Defender and SmartScreen to balance protection and performance exactly according to your preference.
Streamlined usability
Removes bloatware and ads for a cleaner, faster interface configured for optimal user experience right out of the box.
Stays up-to-date
Applies security patches and cumulative updates automatically. Feature updates are skipped to preserve your performance optimizations.
For desktops and laptops
Configure power-saving features for up to 3 hours of extra battery life. Internally tested and validated across multiple device types.
FAQ
Frequently asked questions
Will ArcOS break Windows Update?
No. Windows Update remains fully functional. ArcOS only disables peer-to-peer update delivery. Updates can optionally be deferred via the Toolbox.
Will I lose my files?
No. ArcOS only modifies system settings and services. Your personal files, applications, and user data are never touched.
Can I uninstall ArcOS?
Yes, fully. Open the ArcOS Toolbox and click Revert All Changes, or use Windows System Restore if you created a restore point before install.
Does it work with Windows 11 24H2?
Yes. ArcOS is tested against all current Windows 10 and Windows 11 feature versions, including 24H2.
Is ArcOS open source?
Yes. The full source code is available on GitHub under the MIT license. You can audit, fork, and contribute freely.
Does ArcOS help with performance-heavy tasks?
Yes. By reducing background CPU and RAM usage, ArcOS gives more headroom to demanding software — video editing, compilation, rendering, and more.
Join our community
Be part of the ArcOS community
Join our growing community of hundreds of thousands of ArcOS users. Contribute, share, and stay updated.