Atlas Os — 21h2 ((free))

Based on community testing (Hardware Unboxed, Ancient Gameplays, and Reddit r/AtlasOS) using a mid-range PC (i5-10400, GTX 1660 Super, 16GB RAM):

However, users should be aware of the trade-offs. Because AtlasOS removes many Windows features to save resources, certain functionalities like Windows Update, Microsoft Store, and some security features (like Windows Defender) may be disabled or removed by default. This makes AtlasOS 21H2 ideal for a dedicated gaming machine or a controlled workstation environment, but it may require more technical knowledge to maintain than a standard OS. atlas os 21h2

Tested on an i5-8300H, 8 GB RAM, GTX 1050 (clean install): Tested on an i5-8300H, 8 GB RAM, GTX

While newer versions of Windows 11 (22H2, 23H2, and 24H2) exist, the build became famous for three reasons: Instead, it is a custom ISO or a

So, why should you consider using Atlas OS 21H2? Here are some benefits:

Atlas OS is an open-source modification of Microsoft Windows designed to remove all "bloatware," background services, and privacy-invasive features. It is not a standalone operating system like Linux. Instead, it is a custom ISO or a series of scripts that you run on top of a legitimate Windows installation to strip it down to the bare metal.