Software⏱️ 4 min read📅 2026-06-11

How to Fix: Strange error when Bootcamp attempts to create partition for Windows

Boot Camp partition error fix for OS X 10.6.2

Quick Answer: Try reformatting the disk as a single Mac OS Extended (Journaled) volume using Disk Utility and then restore your information before attempting to create a partition again.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🔧 Proven Troubleshooting Steps
  3. 💡 Conclusion

The error 'The disk cannot be partitioned because some files cannot be moved' occurs when attempting to create a partition for Windows using Boot Camp Assistant on a Mac with OS X 10.6.2. This issue affects users who are trying to dual-boot their operating systems and have already formatted their disk in Mac OS Extended (Journaled). The error can be frustrating, especially if the user has closed all applications and restarted the system multiple times.

The problem arises because the Boot Camp Assistant is unable to move certain files on the disk to create a separate partition for Windows. This issue can be resolved by using Disk Utility to format the disk as a single Mac OS Extended (Journaled) volume, restoring the information to the disk, and then attempting to use Boot Camp Assistant again.

🔍 Why This Happens

  • The primary reason for this error is that the Boot Camp Assistant is unable to move certain files on the disk due to the filesystem verification failing. This can occur when the disk is formatted in Mac OS Extended (Journaled) and contains files that cannot be moved without causing data corruption.
  • An alternative reason could be if there are any file system inconsistencies or corruption on the disk, which prevents the Boot Camp Assistant from creating a separate partition for Windows.

🔧 Proven Troubleshooting Steps

Using Disk Utility to Format the Disk

  1. Step 1: Open Disk Utility and select the disk that you want to format.
  2. Step 2: Click the 'Erase' tab and select 'Mac OS Extended (Journaled)' as the format type.
  3. Step 3: Click 'Erase' to begin the formatting process. This may take a few minutes, depending on the size of your disk.
  4. Step 4: Once the formatting is complete, click 'Quit Disk Utility' and restart your Mac.
  5. Step 5: After restarting, open Boot Camp Assistant and attempt to create a partition for Windows again.

Restoring Information from an External Backup

  1. Step 1: If you have an external backup of the data on your disk, you can restore it before attempting to use Boot Camp Assistant.
  2. Step 2: Connect the external drive to your Mac and open Disk Utility.
  3. Step 3: Select the disk that you want to restore and click the 'Restore' tab.
  4. Step 4: Choose the external drive as the source and select the desired partition scheme.
  5. Step 5: Click 'Restore' to begin the restoration process. This may take a few minutes, depending on the size of your disk.

💡 Conclusion

To resolve the error 'The disk cannot be partitioned because some files cannot be moved', try using Disk Utility to format the disk as a single Mac OS Extended (Journaled) volume and restore any necessary information from an external backup. If you are unable to complete these steps successfully, it may be necessary to seek further assistance from Apple Support or a professional technician.

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