Windows,
Without the Bullsh*t.

Stop Wasting Money on Upgrades. Squeeze Every Single FPS Out of Your Current Hardware with Professional Optimizations.

250K+Downloads
2 Yearsof experience
+25%Avg FPS Gain
Key Features

What Makes AtomOS Special?

A performance tuned builds with our playbook pre-applied. Stripped of bloatware, made for ultra-low latency, and optimized for raw gaming performance right out of the box.

Low Latency

Optimized to reduce delay and give you instant mouse and keyboard response.

No Bloatware

Removes useless background apps and tracking to keep your system clean.

Max FPS

Cuts down RAM and CPU usage to give you the highest gaming performance.

Ready to Play

Fully optimized out of the box. Just install and start gaming immediately.

100% Stable

Lightweight but perfectly stable. Fully supports all your games, drivers, and Xbox features.

Safe Updates

Gets regular community updates to stay fast, secure, and compatible with new games.

Comparison

Atom OS vs Competitors vs Stock Windows

A 74.4% total resource optimization built directly for competitive gaming. The numbers speak for themselves.

MetricStandard WindowsStandard Tiny 11Atom OS
ISO Size~6 GB3 GB1.4 GB (-76%)
Disk Usage22 GB12 GB2.9 GB (-86%)
Installed Apps Count40 apps12 apps2 apps (-95%)
CPU Processes140 processes80 processes50 processes (-64%)
RAM Usage3 GB1.4 GB900 MB (-70%)
LatencyHighHighMinimal
Download Center

Select Your Build

Windows builds that are completely ready for you. No manual tweaks, no setup guides, and no time wasted.

Atom OS 10 Lite

Best for low end devices with tons of disabled apps.

Processor: Intel/AMD dual-core processor 1.5 GHz
Memory: 1.5 GB RAM
Storage: 8 GB available space
Graphics: DirectX 12 compatible graphics adapter. Compatible with all modern GPU architectures.
Requires a valid Windows license key for activation.
FILE SIZE
2.1 GB
Download Now

Looking for other builds?

Check our Discord server for more builds, support, and community discussions.

Join Discord Server β†’
Compare Builds

Lite / Standard vs Ultimate Differences

Compare features of our specialized optimization tiers to find your perfect build.

FeatureLiteStandardUltimate
Windows Defender
Windows Store & UWP Support
Access to the Ultimate Tweaking Packages
30% Discount on all products
Life Time Free Updates
Stability & Security

System Stability & Security Notice

AtomOS is built to be fast, stable, and safe. Every update is fully tested to make sure it works perfectly with all your games, anti-cheat software, and drivers.

Transparency & Open Source

Please note that our custom Windows builds are not open source. However, AtomPlaybook is open source. You can transparently review every tweak and script applied in AtomOS by inspecting our open repositories.

Questions & Answers

Frequently Asked Questions

Find answers to common questions about Atom OS and how it can benefit you.

We build ultra-tweaked custom Windows ISOs and open-source playbooks designed to do one thing: strip background junk, kill input lag, and maximize your FPS.

If the Start Menu fails to initialize, install StartAllBack, which is located in your Post-Install folder.

If you encounter missing runtime errors, download the "All-in-One Runtimes" package. This will automatically install all necessary C++ redistributables and framework components required for system stability.

If you are unable to access your account, try the default credentials: Username: User Password: User

If you experience unexpected application or system crashes, verify that your Paging File is enabled in System Properties.

For a lightweight, reliable alternative to the native tool, we recommend installing LightShot.

If your adapter is not showing up, open ⁠services.msc⁠, navigate to WLAN AutoConfig, and ensure the startup type is set to Automatic.

Navigate to Windows Privacy settings and ensure Microphone Access is toggled to On for your applications.

If your monitor fails to retain your custom refresh rate, open CRU (Custom Resolution Utility), delete all existing resolutions, and create a new profile for your target refresh rate.

User Feedback

What Our Users Say

Dont just take our word for it β€” hear from people who have transformed their computing experience with Atom OS.

It was linux fulltime or Atomos and Linux because Windows 11 is Spyware. AtomOS saved my marriage. ( she hates linux)

Playful Puffer

Playful Puffer

Ultimate Discord User

As the founder of Warris Corp, In daily use (gaming, development, and general tasks), AtomOS feels very clean and efficient. The OS is extremely lightweight thanks to its compact system design, using very little disk space while staying stable and responsive. Performance-wise, it keeps a good balance between speed, stability, and usability. It doesn’t feel over-modified or unstable, which is important for both gaming and work environments.

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π™’π™–π™§π™§π™žπ™¨

Owner of Warris Shop

I’ve been using Atom OS for a while now, and honestly, I’m impressed. Compared to standard Windows 11, it’s noticeably faster. Everything feels snappier. apps open quicker, the system feels lighter and smoother overall.

Marrio

Marrio

Discord User

ive already tested a bunch of different os and atom is definitely the best. its stable, gives me a lot of fps and i feel zero delay in games, 100% recommend it im playing re9 above 200fps all the time on max without rt hahaha

Discord User

Discord User

Discord User

Get Involved

Atom Community

Don’t just be an Atom user, be part of the Atom team.

Project Atom Server

Join our server and share your experience with hundreds, maybe even thousands, of other Atom users.

Global Community

Communicate with people from all around the world.

Open Source

Every single script is available for anyone to view.

Everything is inside the Atom Discord server β€” links, tutorials, guides, special builds, releases, and much more.

Join Our Discord Community