boot camp disk error windows

Boot Camp Assistant may report an error while partitioning your hard drive for Windows.

When trying to create a new Windows partition, Boot Camp Assistant may display a warning: “The hard drive could not be turned off because it is partitioned. An error occurred while partitioning the hard disk. Please run First From Aid in Disk Utility to check and fix the underlying error. €

Use Disk Utility To Check Errors

Find Unallocated Free Space

  1. Open Disk Utility located in the Utilities folder in the Applications folder.
  2. In the sidebar of Disk Utility, select the name of the internal drive and the container and volume, such as Macintosh HD.
  3. Click Split.
  4. on the ins paneltrumpeters.

  5. When you see a signal that Apple file system space is being shared, click Split to confirm that you want to help split instead of adding a volume.
  6. When the entire pie chart shows a section as “Free Space to Click” to select it. “Free space” can now also be displayed in the section information displayed on the right.
  7. After purchasing the Free Space for Recordings section, click the Remove (-) button below the chart. By removing this unallocated free space, this room or living area will be available for your use again. Click Apply and exit Disk Utility.
  8. Try using the Camp Wizard again to properly install Windows.
  9. If Boot Camp Assistant still shows the same partitioning error, use the following methods.

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  • 1. Download Fortect and install it on your computer
  • 2. Launch the program and click "Scan"
  • 3. Click "Repair" to fix any issues that are found

  • If you enable machine time in macOS Mojave or High Sierra, update about macOS Catalina 10.15 or tomorrow, or follow these steps:

    1. Open Time Machine from the Time Machine menu “from the menu bar. Or select System apple menu> Preferences, then click Time Machine.Up
    2. select “revert automatically” to disable Time Machine.
    3. Wait a few minutes, then try using Boot Camp Assistant to install Windows.
    4. After the installation is complete, you can turn on the machine again for a short time.

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