Installation
Download
Download the latest ETSi-Setup-x64.exe from the download page.
Verify integrity
Before running, verify the SHA-256 checksum shown on the download page matches what you downloaded:
certutil -hashfile ETSi-Setup-x64.exe SHA256
Run
Double-click the executable. No installation wizard, no setup process — ETSi launches immediately. On first run, Windows may show a SmartScreen prompt; click More info → Run anyway.
ETSi is fully portable. You can run it from a USB drive or a shared network folder.