Disclaimer:

Windows 10 Lean (also known as Windows 10 Cloudmark or "S" mode in specific contexts) was an experimental edition intended for low-end devices. It was never officially released as a standalone retail ISO by Microsoft. The official "light" version of Windows is now Windows 10/11 in S Mode, or the smaller "Windows 10 Team" edition. The guide below focuses on legitimate ways to obtain a lightweight Windows experience or the closest official equivalents.

How to Download the Official Windows 10 64-bit ISO

Installation Guide: How to Install Windows 10 Lean 64-bit

Important Note Before You Begin:

Microsoft officially ended support for Windows 10 version 1507 (the only version that had a specific "Lean" edition) long ago. Using it today poses significant security risks.

  1. Download official Windows 10 22H2 64-bit ISO from Microsoft.
  2. Use NTLite or MSMG Toolkit to remove components (Windows Defender, Edge, OneDrive, Store apps).
  3. Apply Compact OS and LZX compression.
  4. Create a bootable USB with the trimmed ISO.

Reduced Footprint

: Achieves a smaller size by removing legacy components and non-essential apps.

Downloading Windows 10 Lean ISO (64-bit)

Windows 10 Lean

If you are looking for , you are likely trying to breathe new life into an older PC with limited storage or RAM. While a specific "Lean" ISO was leaked during testing, it was never finalized for public release.