What is a Boot Camp partition? If you are a Mac user, you may have heard of Boot Camp Assistant—a utility developed by Apple to help users install and run Windows on a Mac. When installing Windows on a Mac via Boot Camp Assistant, the tool downloads the necessary support software, creates a partition on your disk for Windows, and then starts the Windows Installer. The partition created during this process is called the Boot Camp partition. It is an NTFS partition.
Why use BitLocker to encrypt the Boot Camp partition on a Mac?On Mac computers, users typically rely on FileVault to encrypt HFS and APFS partitions for data protection. However, FileVault does not support NTFS partitions, which means it cannot encrypt a Boot Camp partition. While some third-party Mac tools claim to encrypt NTFS partitions, encrypting the Boot Camp partition with them may prevent Windows from booting correctly. Therefore, choosing the right encryption software is critical. We recommend using BitLocker, Windows' built-in disk encryption feature (available in Windows 10, 8, and 7). Because BitLocker Drive Encryption is natively integrated into Windows, it will not cause boot failures on the Boot Camp partition.
The best software to encrypt your Boot Camp partition on Mac with BitLocker. If you decide to use BitLocker encryption on a Boot Camp partition, you need a BitLocker program that runs natively on macOS. We recommend Hasleo BitLocker Anywhere For Mac—the most powerful Mac BitLocker solution on the market. Below, this guide shows how to encrypt your Boot Camp partition.
Tips:
Step 1. Download and install Hasleo BitLocker Anywhere For Mac.

Step 2. For macOS Mojave (10.14) and later, you need to grant Full Disk Access to Hasleo BitLocker Anywhere For Mac. For more information, please refer to Granting Full Disk Access to Hasleo BitLocker Anywhere For Mac.

Step 3. Run Hasleo BitLocker Anywhere For Mac, right-click the Boot Camp partition in main window, then click "Turn On BitLocker".

Step 4. In this step, you need to set a password for encrypting the drive. Enter the password and click "Next". Choose a password that includes a combination of uppercase and lowercase letters, numbers, spaces, and special symbols. Once encryption is complete, you can access the drive using this password.

Step 5. Back up BitLocker recovery key, then click “Next” to move on. You can save the recovery key to a file or print a copy of it. Please note that anyone can use the recovery key to gain access to the drive, even if they do not know the password entered in the previous step, so please do not disclose it to others.

Step 6. Hasleo BitLocker Anywhere for Mac will now encrypt the selected drive using BitLocker encryption. The encryption process may take a long time depending on the drive size, so please be patient. If you prefer not to wait, you can select the "Shut down the computer when the operation is completed" option—just check the box.

Step 7. After the encryption is complete, click the "Finish" button to return to the main window.

As mentioned above, Hasleo BitLocker Anywhere For Mac is the best software for encrypting the Boot Camp partition with BitLocker on a Mac. If you want to encrypt the Boot Camp partition under Windows, please refer to: How to encrypt Boot Camp partition with BitLocker in Windows?
A: Yes, you can encrypt Boot Camp partition with BitLocker on Mac using Hasleo BitLocker Anywhere for Mac, the only software that supports BitLocker encryption on macOS.
A: No, FileVault does not support NTFS partitions, which means it cannot encrypt Boot Camp partitions. BitLocker is the recommended solution for Boot Camp encryption.
A: No, BitLocker is natively integrated into Windows and will not cause boot failures on the Boot Camp partition, unlike other third-party encryption tools.
A: If you forget your password, you can use the BitLocker recovery key to unlock the Boot Camp partition. Make sure to back up the recovery key during encryption.
A: The encryption time depends on the partition size. You can select 'Encrypt used disk space only' to save time, or choose to shut down the computer when encryption completes.
A: Use compatible mode if you plan to use the Boot Camp partition on Windows versions prior to Windows 10 Version 1511. Otherwise, XTS-AES mode is recommended for better security.
A: Yes, you can decrypt the Boot Camp partition using Hasleo BitLocker Anywhere for Mac. The decryption process is reversible.
A: The encryption runs in the background and does not affect Mac performance. Once encrypted, the Boot Camp partition works normally within Windows.