Software⏱️ 3 min read📅 2026-06-15

How to Fix 0x80042565 Error – Windows 10 PXE installation (error 0x80042565)

Error code 0x80042565 occurs during PXE installation on Windows 10, related to incorrect setup of answer files.

Quick Answer: Check the setting in the answer file for correct partition creation and try updating or reconfiguring the settings.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🛠️ Step-by-Step Verified Fixes
  3. 💡 Conclusion

The error code 0x80042565 occurs during the Windows 10 PXE installation process, preventing the creation of partitions on disk 0. This issue affects laptops with both legacy and UEFI firmware, as it seems that the answer files are incorrectly configured.

This error can be frustrating for IT technicians and administrators who need to deploy Windows 10 on multiple devices. In this guide, we will explore the possible causes of this error and provide a step-by-step solution to resolve the issue.

🔍 Why This Happens

  • The primary reason for this error is that the DiskConfiguration element in the answer file is missing or incorrectly formatted. The correct format requires specifying the Disk wcm:action='add' and CreatePartitions elements. Additionally, the Disk element must specify the UniqueIdentifier attribute.
  • An alternative cause could be that the answer file contains duplicate or conflicting settings for the same partition configuration. This can lead to confusion during the PXE installation process.

🛠️ Step-by-Step Verified Fixes

Correcting the DiskConfiguration element

  1. Step 1: Open the autounattend.xml file in a text editor and locate the DiskConfiguration element. Ensure that it has the correct format, including the wcm:action='add' attribute.
  2. Step 2: Add the CreatePartitions element to the DiskConfiguration section, as shown below:
  3. Step 3: Save the changes and verify that the answer file is correctly formatted.

Verifying for duplicate or conflicting settings

  1. Step 1: Open the autounattend.xml file in a text editor and review the DiskConfiguration section for any duplicate or conflicting settings.
  2. Step 2: Check if there are multiple instances of the same partition configuration. If found, remove all but one instance and save the changes.
  3. Step 3: Verify that the answer file is correctly formatted and free from errors.

💡 Conclusion

To resolve the error code 0x80042565 during Windows 10 PXE installation, it is essential to correct the DiskConfiguration element in the autounattend.xml file. Follow the steps outlined above to ensure that the answer file is correctly formatted and free from errors.

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