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# **nano11 🔬**
A PowerShell script to build a heavily trimmed-down Windows 11 image.
A PowerShell script to build an even more heavily trimmed-down Windows 11 image.
## **Introduction**
Welcome to nano11, the next step in creating ultra-lightweight Windows 11 builds. This project provides a flexible and powerful PowerShell solution for creating custom, minimal installation images.
Introducing nano11 builder, a PowerShell script that creates an even smaller Windows 11 image!
You can now use this script on **ANY Windows 11 release**, regardless of build, language, or architecture. This is made possible thanks to the improved scripting capabilities of PowerShell.
The goal of nano11 is to automate the build of a streamlined Windows 11 image. The script uses only built-in DISM capabilities and the official oscdimg.exe (downloaded automatically) to create a bootable ISO with no external binaries. An included unattended answer file helps bypass the Microsoft Account requirement during setup and enables compact installation by default.
It's open-source, so feel free to modify and adapt it to your needs\! Also, feedback is much appreciated!
The goal of nano11 is to automate the build of a streamlined Windows 11 image. The script uses only built-in DISM capabilities and the official oscdimg.exe (downloaded automatically) to create a bootable ISO with no external binaries. An included unattended answer file helps bypass the Microsoft Account requirement during setup and enables compact installation by default. It's open-source, so feel free to modify and adapt it to your needs\!
## **☢️ BEFORE YOU BEGIN:**
## **☢️ Script Philosophy: The Core Builder**
This repository contains a single, powerful script: nano11.ps1. This is an **extreme experimental script** designed for creating a quick and dirty development testbed. It removes everything possible to get the smallest footprint, including the Windows Component Store (WinSxS), core services, and much more.
This is an **extreme experimental script** designed for creating a quick and dirty development testbed. It removes everything possible to get the smallest footprint, including the Windows Component Store (WinSxS), core services, and much more.
The resulting OS is **not serviceable**. This means you cannot add languages, drivers, or features, and you will not receive Windows Updates. It is intended only for testing, development, or embedded use in VMs where a minimal, static environment is required.
@@ -49,17 +48,15 @@ The nano11.ps1 script is extremely aggressive. It removes:
6. **Follow the prompts:** The script will ask for the drive letter of the mounted image and the edition (SKU) you want to base your image on.
7. **Sit back and relax\!** When completed, the new ISO will be in the same folder as the script.
## **Known Issues & Troubleshooting**
In the end you should get an image that is up to **3 times** as smaller as a standard Windows 11 image!
## 🎬 Watch the Demo
* **Stuck on Boot:** If your ISO hangs on the boot screen, a critical service or component was removed. The most likely culprits are the **Audio services** or the aggressive WinSxS trim. You may need to edit the script to be less aggressive for your specific hardware or Windows build.
* **Installer Errors:** An error like 'autorun.dll' could not be loaded means a critical setup file was removed. This can happen with the aggressive sources folder cleanup. Add the missing file to the $dependencies list in the boot.wim section and rebuild.
* **Remnants:** Although Edge is removed, some links may remain in the Settings app.
* **Post-install Apps:** Outlook and Dev Home might try to reinstall themselves over time. The script attempts to block this, but it's an ongoing battle.
[![Here's how to use nano11 builder, including how you can get to an installation as small as 3GB!](https://img.youtube.com/vi/YIOesMc50Dw/maxresdefault.jpg)](https://www.youtube.com/watch?v=YIOesMc50Dw)
## **Future Features**
## ❤️ Support the Project
* Improved language and architecture detection.
* More flexibility in what to keep and what to delete, possibly via a config file.
* A GUI to make the process even easier.
If this project has helped you, please consider showing your support! A small donation helps me dedicate more time to projects like this.
Thank you!
And that's pretty much it for now\! Thanks for trying nano11 and let me know how you like it\!
**[Patreon](http://patreon.com/ntdev) | [PayPal](http://paypal.me/ntdev2) | [Ko-fi](http://ko-fi.com/ntdev)**
## And that's pretty much it for now\! Thanks for trying nano11 and let me know how you like it\!