If you have Visual Studio Professional/Enterprise subscription → Downloads → Windows 10 IoT Enterprise LTSC 2021.

Whether you are building a retro gaming rig, a digital signage player, or a complex industrial controller, this is the OS that ensures your device works when it needs to, for as long as it needs to.

However, you can still develop for and deploy the 22H2 version (Build 19045) on IoT devices for a shorter 30-month support lifecycle, or use it to update existing LTSC 2021 systems. Microsoft Learn 1. Acquiring the ISO and Tools

Uses significantly less RAM and CPU at idle compared to Pro or Home editions.