Although Microsoft has not implemented BitLocker for macOS, but with the help of M3 BitLocker Loader, we can easily open/access BitLocker encrypted drive on macOS and encrypt external drive with BitLocker on macOS.

ISumsoft BitLocker Reader is a paid app that costs just $19.95. It supports popular file systems like FAT32, exFAT, and NTFS. It is compatible with the newest Mac OS as well as older versions down to Mac OS X 10.7 Lion. Even when you use an older version, you can still give it a try since it comes with a 30-day money back guarantee. After the BitLocker encrypted drive is mounted, it is super easy for you to read and write the drive on Mac computer. Open.dmg File with Attach Function The DMG file is the image file of Mac OS, which is equal to the ISO file of Windows operating system.

How to install and use BitLocker on macOS/Mac OS X?

Step 1: Download M3 BitLocker Loader for Mac to our Mac computer.

Step 2: After the download completes, double click the installation packpage to run it.

Step 3: Drag M3 BitLocker Loader to Applications folder.

How to enable BitLocker on macOS or Mac OS X?

Step 1: Launch M3 BitLocker Loader for Mac.

Step 2: Insert external drive (Such as USB drive, external hard drive) into our Mac computer, the file system of external drive must be NTFS, FAT32 or exFAT.

Step 3: Click 'Encrypt' button in toolbar.

Step 4: Select the partition which you want to encrypt and click Encrypt.

Step 5: Enter the password.

Step 6: Save the recovery key.

Step 7: Complete BitLocker drive encryption.

After BitLocker drive encryption completes, you can use M3 BitLocker Loader for Mac to read/write BitLocker encrypted drive as a local drive on macOS/Mac OS X.

Bitlocker Download Mac

How to read/write BitLocker encrypted drive on macOS/Mac OS X?

Step 1: Launch M3 BitLocker Loader for Mac.

Step 2: Insert a BitLocker encrypted drive into our Mac computer.

Step 3: Select BitLocker encrypted volume and then click 'Open' icon to continue.

Step 4: Enter the password (or 48-digit BitLocker recovery key) and then click 'Unlock' to unlock BitLocker encrypted volume.

Step 5: After mounting BitLocker encrypted drive, we can read/write BitLocker encrypted drive on Mac.

How to turn off BitLocker on macOS/Mac OS X?

There is no option to turn off BitLocker with M3 BitLocker Loader for Mac, but we can turn off BitLocker drive encryption from USB drive, external hard drive, thumb drive, etc. with following method:

Step 1: Back up the data stored in BitLocker encrypted drive.

Step 2: Open Applications folder, Utilities, Disk Utility.

Step 3: Select BitLocker encrypted drive in Disk Utility and then click Erase to reformat it.

Mac Bitlocker Usb

Related articles:

What is Boot Camp partition? If you are a Mac computer user, you may have heard of Boot Camp Assistant, a utility developed by Apple to help users install and run Windows on a Mac computer. When installing Windows on Mac computer via Boot Camp Assistant, the Boot Camp Assistant downloads the necessary support software, creates a partition on your disk for Windows, and then starts the Windows Installer. The partition created by Boot Camp Assistant for Windows during this process is called the Boot Camp partition, it is an NTFS partition.

Why use BitLocker to encrypt Boot Camp partition on Mac?We know that on Mac computers, users usually use FileVault to encrypt partitions to protect our data, but FileVault is only available to encrypt HFS and APFS partitions, it cannot be used to encrypt NTFS partitions, so we cannot use FileVault to encrypt a Boot Camp partition. Perhaps other third-party software under the Mac supports encryption of the NTFS partition, but encrypting the Boot Camp partition may cause Windows to fail to start properly, so we must carefully choose the encryption software. Here we recommend that you choose BitLocker to encrypt the Boot Camp partition. BitLocker Drive Encryption is the built-in disk encryption feature of Windows 10/8/7, so it will not cause Windows to fail to start.

The best software to encrypt Boot Camp partition with BitLocker on Mac. If you decide to use BitLocker encryption Boot Camp partition, you need to find a BitLocker encryption program that can run under Mac. Here we recommend that you choose Hasleo BitLocker Anywhere For Mac, which is the most powerful Mac BitLocker solution on the market, and below we will show how to use it to encrypt the Boot Camp partition on Mac.
Tips:

• Terminating the program, removing the drive or abnormal power off during encryption will result in data corruption, so it is recommended that you back up the files on the volume you want to encrypt before encrypting it.
• Please keep the BitLocker password in mind and back up the BitLocker recovery key safely, losing both of them will cause the data to be inaccessible.

Tutorial to encrypt Boot Camp partition with BitLocker in macOS & Mac OS X.

Bitlocker Drive Mac

Step 1. Download, install and run Hasleo BitLocker Anywhere For Mac.

Step 2. Right-click the Boot Camp partition in main window, then click 'Turn On BitLocker'.

Step 3. In this step, you are required to specify a password for encrypting the drive, enter the password and click 'Next'. You should choose a password having a combination of upper and lower case letters, numbers, spaces, and special symbols. Once the encryption is complete, you can access the drive using this password.

• Encrypt used disk space only: Allows you to encrypt only the disk space that is currently used by the drive file system, unused space will remain unencrypted, this option can help you save time spent on encryption. After you encrypt a drive with this option, all files that you added to the drive are automatically encrypted.
• Compatible mode: If a drive that you plan to encrypt needs to be used on Windows operating systems prior to Windows 10 Version 1511, you should choose compatible mode. Windows 10 Version 1511 introduces a new disk encryption mode (XTS-AES) that is not compatible with older versions of Windows, the compatible mode (AES-CBC) is full compatible with older versions of Windows.
• Use 256-bit encryption: Bitlocker supports 128-bit and 256-bit encryption strength. The 256-bit encryption is more secure but will take up more CPU resources, so you should choose different encryption strengths according to your needs. Please tick this checkbox if you want to use 256 encryption strength.

Step 4. 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 5. Hasleo BitLocker Anywhere For Mac will now encrypt the contents of the selected drive using BitLocker drive encryption. The encryption process could take a long time to finish depending on the size of the drive, so please be patient to wait. If you don't want to wait until the encryption operation is finished, 'Shut down the computer when the operation is completed' option is a good idea. Just check it.

Step 6. 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 you can use it to encrypt Boot Camp partition with BitLocker on 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?