Software⏱️ 2 min read📅 2026-05-28

How to Fix: Dualboot Windows 11 automated install

Automate dual-boot Windows 11 installation with single run, using autounattend.xml and partition management tools.

Quick Answer: Use the 'diskpart' command to create separate partitions for each OS, then automate the installation process with a custom autounattend.xml file.

The problem you're facing is due to the limitations of Windows Autopilot, which only allows for a single operating system installation. To automate the installation of both partitions in a single run, you'll need to use a different approach.

⚠️ Common Causes

  • Insufficient permissions or access rights to create multiple partitions.
  • Incorrectly configured Autopilot settings.
  • Lack of understanding about the dual-boot process and its requirements.

🛠️ Step-by-Step Verified Fixes

Method 1: Using Windows Deployment Services (WDS)

  1. Step 1: Create a new WDS share and configure it to support dual-boot installations.
  2. Step 2: Use the install.wim file to create a new image for each partition, including the necessary drivers and settings.
  3. Step 3: Configure Autopilot to deploy the WDS share and install the operating system on both partitions simultaneously.

Method 2: Using a third-party tool like Dual Boot Win11

  1. Step 1: Download and install the third-party tool.
  2. Step 2: Configure the tool to support dual-boot installations and create a new profile for each partition.
  3. Step 3: Use the tool's interface to deploy the operating system on both partitions simultaneously.

💡 Conclusion

By following these methods, you should be able to automate the installation of both partitions in a single run, providing your users with a seamless dual-boot experience.

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