Follow the on-screen installation steps. Make sure to delete old partitions on your target storage drive to guarantee a fresh system setup. Important Trade-offs and Considerations
Discontinued/Experimental (last seen in Insider Build 17650 in 2018).
Proceed with extreme caution. Only download from community-verified sources, and always scan with antivirus and hash verification.
Back in 2018, during the Redstone 5 development cycle, Microsoft tested a new SKU internally called It was designed for devices with extremely low storage (starting at 16GB).
Once you have the official ISO, you can easily trim out the fat yourself using reliable open-source toolkits:
Microsoft does not officially distribute Windows 10 Lean to consumers. The methods described below are for educational purposes and use within legal boundaries (e.g., evaluation copies, internal testing, or modifying official ISOs with Microsoft tools).