v1.0.0 Stable — Released March 2026

Download G4 OS

The AI-first operating system. Free to download, free to use — forever.

Download ISO — v1.0.0
2.5 GB ISO · amd64 (x86_64) · Build 20260315 · Free forever

G4 OS ISO Image

The full G4 OS installation image. Write to USB, boot, and install.

💿

G4 OS 1.0.0 — amd64 (x86_64)

For all Intel and AMD 64-bit PCs, laptops, and servers — Build 20260315

Download ISO
File size
~2.5 GB
Format
ISO 9660
Architecture
x86_64 (64-bit)
Boot mode
UEFI + Legacy BIOS
🔐 SHA256 🔑 MD5 Verify your download after completing
64-bit CPU required
4 GB RAM minimum
20 GB disk minimum
Full requirements →

Remote Control Apps

Control your G4 OS desktop remotely from any device.

🪟
Windows Client
.exe installer — Windows 10 / 11
Native Windows app. Low-latency remote desktop with file transfer and clipboard sync.
Download .exe
🐧
Linux Client
AppImage — Ubuntu, Fedora, Arch…
Portable AppImage. No installation required — just mark as executable and run.
Download AppImage
📱
Android Client
APK — Android 8.0+ (Oreo)
Touch-optimised remote desktop. Enable "Install from unknown sources" in Android settings.
Download APK
🌐
Web Client
Browser — no install required
Access your G4 OS desktop directly from any modern browser. Nothing to install.
Open Web Client

Installation Guide

Get G4 OS running in minutes.

Using balenaEtcher (Recommended)

  • 1

    Download the ISO

    Get g4os-1.0.0-amd64.iso using the button above.

  • 2

    Download balenaEtcher

    Get it free from etcher.balena.io. Works on Windows, macOS, and Linux.

  • 3

    Flash to USB (8 GB+)

    Open Etcher → "Flash from file" → select the ISO → select your USB drive → Flash.

  • 4

    Boot from USB

    Restart your PC and press F12, F2, or Del to open the boot menu. Select your USB drive.

  • 5

    Install G4 OS

    Follow the on-screen installer. Takes 5–10 minutes.

Using dd (Linux / macOS Terminal)

  • 1

    Find your USB device

    Run lsblk (Linux) or diskutil list (macOS) to identify the USB device (e.g. /dev/sdX).

  • 2

    Write the ISO

    # Replace /dev/sdX with your USB device
    sudo dd if=g4os-1.0.0-amd64.iso \
        of=/dev/sdX bs=4M status=progress
    sudo sync
  • 3

    Boot from USB

    Restart and press your BIOS/boot menu key. Select the USB drive.

Warning: Double-check the device path. dd will overwrite the entire device without confirmation.

Other Installation Methods

Upgrade from your existing OS or try G4 OS alongside it.

🐧 Linux One-Line Installer

Install G4 OS on an existing Debian/Ubuntu system with a single command. Ideal for servers or upgrading a current Linux install.

curl -fsSL https://os.g4.business/install.sh | sudo bash

🪟 Windows Dual-Boot Installer

Install G4 OS alongside Windows 10/11. The installer automatically creates a dual-boot entry in your Windows bootloader.

Download Windows Installer

💻 Chromebook Installer

Replace ChromeOS or run G4 OS in a developer shell on supported Chromebook models. Requires enabling developer mode.

Chromebook Guide →

Verify Your Download

Always verify the checksum to ensure your download is authentic and uncorrupted.

# Download the SHA256 checksum file
wget https://os.g4.business/download-iso.php?file=g4os-1.0.0-amd64.iso.sha256

# Verify the ISO
sha256sum -c g4os-1.0.0-amd64.iso.sha256

Expected output: g4os-1.0.0-amd64.iso: OK

# In PowerShell — verify SHA256
Get-FileHash g4os-1.0.0-amd64.iso -Algorithm SHA256

# Compare with the hash from the .sha256 file
# you downloaded above

If the hash matches the contents of the SHA256 file, your download is verified.

Frequently Asked Questions

Common questions about downloading and installing G4 OS.

Yes — G4 OS is completely free to download, install, and use. Optional paid plans unlock additional cloud AI credits, extended remote access, and enterprise features. The core OS and all basic features are free forever.
You need at least an 8 GB USB drive. The ISO is approximately 2.5 GB but balenaEtcher and dd require the drive to be slightly larger than the image.
Yes. Use the Windows Dual-Boot Installer which automatically partitions your drive and adds G4 OS to the Windows boot menu. Alternatively, during the ISO install you can select "Install alongside Windows" and manually partition.
Downloads are rate-limited to 8 per day per IP. If you need bulk or high-speed access, contact us for a mirror link. We also recommend using a download manager that supports resume (the server supports HTTP Range requests).
This is a false positive common with remote desktop software. The G4 OS Remote Control app is code-signed. Verify the SHA256 checksum after download and ensure it matches the file on this page. If you're still unsure, use the browser-based web client instead — no installation required.
G4 OS 1.0.0 supports UEFI boot. Secure Boot support is planned for v1.1. For now, you may need to disable Secure Boot in your BIOS/UEFI settings to install. See the help guide for step-by-step instructions.
Download the AppImage, then in a terminal run:
chmod +x G4OS-Remote-Control-Linux.AppImage
./G4OS-Remote-Control-Linux.AppImage
No installation or root access required.

Ready to get started?

Download G4 OS now and experience the AI-first operating system.

Download ISO — Free Installation Help