Can't install Windows on Boot Camp because of BitLocker

General
1

I tried to use Windows with Parallels Desktop but the performance didn’t meet my expectations. So I decided to install Windows on my Mac via Boot Camp. However, it failed with the error indicating something about BitLocker. How do I solve it?

2

Fully uninstall Parallels Desktop and then reboot your Mac.

The partition for Windows seems to be BitLocker-encrypted, possibly because you have run Windows on Parallels Desktop.

To uninstall the app fully, download iBoysoft MagicMenu, then get the “Uninstall app” extension from its library so that you can remove it by right-clicking.

After that, retry running Boot Camp Assistant.

3

You can free the Windows partition before rerunning Boot Camp.

  1. Open Terminal.
  2. Run the following command.
diskutil list internal
  1. Note down the disk identifier of the Windows partition. For example, disk0s3.
  2. Replace the disk_identifier in the command below and execute it.
diskutil eraseVolume free free disk_identifier
  1. Run Boot Camp again.