If you see the alert 'Installation cannot proceed with Boot Camp configured'

This alert appears when you try to install macOS Mojave 10.14 on certain iMac models configured with 3TB hard drives. Learn about the options for installing macOS Mojave on these models.

"Installation cannot proceed with Boot Camp configured" appears when you try to install macOS Mojave on these computers that have an existing Boot Camp partition:

  • iMac (27-inch, Late 2012) with a 3TB hard drive
  • iMac (27-inch, Late 2013) with a 3TB hard drive
  • iMac (Retina 5K, 27-inch, Late 2014) with a 3TB hard drive

The alert appears because the existing Boot Camp Windows partition schema conflicts on these models with APFS, the file system that macOS Mojave uses.

If you have iMac (27-inch, Late 2012), you can install macOS Mojave using the steps below — but after the update, you cannot use Boot Camp to install Windows.

If you have iMac (27-inch, Late 2013) or iMac (Retina 5K, 27-inch, Late 2014), follow the steps below to install macOS Mojave and then install Windows with Boot Camp.

iMac (27-inch, Late 2012) with a 3TB hard drive

After you install macOS Mojave, you cannot use Boot Camp to install Windows on iMac (27-inch, Late 2012) with a 3TB hard drive.

To install macOS Mojave on this model:

  1. Back up your Windows data so that you can restore it if you install Windows on a different computer.
  2. Use Boot Camp Assistant to remove the Boot Camp partition.
  3. Install macOS Mojave.

iMac (27-inch, Late 2013) or iMac (Retina 5K, 27-inch, Late 2014) with a 3TB hard drive

To install macOS Mojave and Windows 10 on these two models:

  1. Back up your Windows data.
  2. Use Boot Camp Assistant to remove the Boot Camp partition.
  3. Install macOS Mojave.
  4. Use Boot Camp Assistant to install Windows 10.*
  5. Restore your Windows data from backup, if needed.

* macOS Mojave accepts new installations of Windows 10 or later.

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