It was a failure. (At least, commercially.)
By Alex Corren, Senior Tech Analyst
The result was a prototype called "MinWin 10." It replaced the classic Explorer shell with a custom launcher (codenamed "Lighthouse"). It ripped out GDI (Graphics Device Interface) and replaced rendering with DirectX 12 Ultra-Lite. The OS booted to a command line in 2 seconds. With a community driver pack, it booted to a desktop in 6 seconds. windows nano10
Developers loved the speed but hated the friction. You couldn't RDP into a GUI. You couldn't run legacy apps. By Server 2019, Microsoft had softened Nano, turning it into a "Container Host OS." But the damage was done. The source code, however, lived on in internal Microsoft labs. Around 2018, an internal Microsoft hackathon team—frustrated with Windows 10’s bloated telemetry, Cortana, and Edge background processes—forked the Nano Server kernel. Their goal: Make Windows 10 run on a Raspberry Pi 3. It was a failure