How to encrypt USB drive with Bitlocker on macOS/Mac OS X?

Posted by Admin to Bitlocker for Mac on June 21th, 2018

Preconditions for using Bitlocker drive encryption on macOS/Mac OS X

1. Prepare for an external drive, such as USB drive, flash drive, external hard drive.

2. The file system of the external drive must be NTFS, FAT32 or exFAT.

3. Bitlocker drive encryption requires macOS 10.11 and above OS (Sierra, High Sierra and Mojave).

Tutorial to encrypt USB drive with Bitlocker on macOS Mojave/High Sierra/Sierra/El Capitan

Step 1: Download and install M3 Bitlocker Loader for Mac.

Step 2: Insert USB drive (USB flash drive or USB external hard drive) into Mac computer.

Step 3: Launch M3 Bitlocker Loader for Mac.

Step 4: Click "Encrypt" button in toolbar.

M3 Bitlocker Loader for Mac

Step 5: Select the partition which you want to encrypt and click Encrypt.

Encrypt drive with M3 Bitlocker Loader for Mac

Step 6: Enter the password.

Enter the password

Step 7: Save the recovery key.

Save the recovery key

Step 8: It will take a while to complete Bitlocker drive encryption. Once the encryption is completed, the external drive will be protected by Bitlocker, there is no M3 Bitlocker Loader for Mac installed on the external drive, so you don't need to worry about your data security.

Start Bitlocker drive encryption on Mac

Video tutorial:

After using Bitlocker to encrypt external drive on Mac, we can use M3 Bitlocker Loader for Mac to read/write Bitlocker encrypted drive on Mac Mini, Mac Pro, MacBook, MacBook Pro, MacBook Air, iMac with macOS Catalina 10.15/Mojave 10.14/High Sierra 10.13/Sierra 10.12 and Mac OS X 10.11/10.10/10.9/10.8/10.7 Operating Systems.

You can also access Bitlocker encrypted external drive on any Windows computer without the 3rd-party software or access Bitlocker encrypted external drive in Linux with M3 Bitlocker Loader for Linux.

Tutorial to open and read/write Bitlocker encrypted USB drive on Mac computer

Step 1: Download, install and launch M3 Bitlocker Loader for Mac on your Mac computer.

Step 2: Insert a Bitlocker encrypted USB drive.

M3 Bitlocker Loader for Mac

Step 3: Select Bitlocker encrypted USB drive you want to open on Mac computer and then click "Open" icon to continue.

Open and read Bitlocker encrypted USB drive on Mac

Step 4: Enter the password (or 48-digit Bitlocker recovery key) and click "Unlock" to unlock Bitlocker encrypted USB drive.

Open and read Bitlocker encrypted USB drive on Mac

Step 5: Select the files in Bitlocker encrypted USB drive you and then copy them out.

Open and read Bitlocker encrypted USB drive on Mac

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