Open Rufus, select your USB drive, and click to choose your newly created Windows 10 Lean 64-bit ISO.
Instead of risking unknown ISOs, create a custom lean image:
| Feature | Windows 10 Lean (Unreleased) | Official Windows 10 Pro 64-bit | |---------|------------------------------|--------------------------------| | Install size | ~6–8 GB | ~20–25 GB | | Official support | No | Yes (until Oct 2025) | | Security updates | No | Yes | | Safe for daily use | No | Yes | windows 10 lean iso download 64-bit
Extract the contents of the downloaded ZIP file into a dedicated folder on your local drive (e.g., C:\LeanISO ). Locate the file named uup_download_windows.cmd . Right-click the file and select .
: Download a trusted deployment customization utility such as MSMG Toolkit , NTLite , or the open-source script Win10Debloater . Open Rufus, select your USB drive, and click
. While it was never officially released to the general public as a standalone consumer product, it appeared in early Insider Preview builds like Build 17655 Official Download (Standard Windows 10)
No. Microsoft abandoned the “Lean” concept for Windows 11. However, the project (unofficial) serves a similar purpose for Windows 11. Right-click the file and select
:The safest way is to use the Media Creation Tool to download a clean 64-bit ISO and then use a debloater script to strip it down to its essentials.
Ready to give Windows 10 Lean a try? Here's a direct link to download the 64-bit ISO file:
: To get a direct link without the tool, change your browser's User Agent
Windows 10 Lean is less secure. Truth: All security patches, Defender definitions, and firewall rules are identical to standard Windows 10. It lacks certain optional security features (e.g., Credential Guard) but these are irrelevant for low-end devices.