Microsoft has been working on a lightweight version of Windows 10, often referred to as "Windows 10 Lite" or "Windows 10 Lean". This version aims to provide a more streamlined and efficient operating system for devices with limited resources, such as older hardware or IoT devices. The latest iteration of this project is based on Windows 10 Version 21H2 and 21H1, with builds 19043 and 1387 respectively.

Windows 10 Lite Version 21h221h1 Build 1904x1387 May 2026

Microsoft has been working on a lightweight version of Windows 10, often referred to as "Windows 10 Lite" or "Windows 10 Lean". This version aims to provide a more streamlined and efficient operating system for devices with limited resources, such as older hardware or IoT devices. The latest iteration of this project is based on Windows 10 Version 21H2 and 21H1, with builds 19043 and 1387 respectively.