By Tim | Posted to Home > BitLocker for Mac Tips, updated on July 20th, 2021

How to open BitLocker-encrypted USB drive on Mac?

Summary: Here you will find how to open, read, write BitLocker encrypted drive on Mac with BitLocker for Mac tool: M3 BitLocker Loader for Mac.

How to access a BitLocker-encrypted USB drive on Mac?

I am a cross-platform user, I am sometimes required to use Windows but my choice is Mac. To secure the data on my USB, I have enabled BitLocker encryption on my USB drive. However, I need to open a BitLocker USB drive on my Mac. How to do it?

The question is from Apple discussions forum. You may ask the same question if you want to open a BitLocker-encrypted drive on Mac.

Is BitLocker compatible with Mac or can Mac open a BitLocker-encrypted drive?

By default, macOS cannot open a BitLocker encrypted drive. After inserting a BitLocker encrypted drive to your Mac, you will be prompted with "The disk you inserted was not readable by this computer".

The disk you inserted was not readable by this computer

What to do if you have to open BitLocker encrypted drive on Mac?

BitLocker for Mac tool

With the help of the 3rd-party professional BitLocker for Mac tool: M3 BitLocker Loader for Mac, you can easily open BitLocker-encrypted drive in read-write mode on your Mac.

M3 BitLocker Loader for Mac is fully compatible with macOS Monterey Beta, Big Sur, Catalina, Mojave, High Sierra and Apple Silicon M1 Mac.

Even BitLocker is compatible with macOS through M3 BitLocker Loader for Mac, how to open a BitLocker-encrypted USB drive on Mac?

Tutorial to open a BitLocker-encrypted USB drive on Mac:

Follow the below step-by-step tutorial to read/write BitLocker encrypted drive on your Mac:

Step 1: Download M3 BitLocker Loader for Mac.

The first step is to download "m3bitlockerloader.pkg" from our official site.

M3 BitLocker Loader for Mac setup requires macOS High Sierra 10.13 and later version. If you are using macOS Sierra 10.12 and older Mac OS X, please contact [email protected]

Step 2: Install M3 BitLocker Loader for Mac.

After downloading, doule click the "m3bitlockerloader.pkg" file in your Downloads folder and follow the wizard to install it.

Step 3: Enable system extensions.

If your Mac is running macOS High Sierra 10.13 and later version, click "Open Security Preferences" to allow system extensions when prompted.

Step 4: Launch M3 BitLocker Loader for Mac.

Once it is installed, go to Applications folder or Launchpad and launch M3 BitLocker Loader for Mac.

Have not installed M3 BitLocker Loader for Mac, download it here:

Step 5: Insert a BitLocker-encrypted USB drive into your Mac.

Launch M3 BitLocker Loader for Mac

If you don't have a BitLocker-encrypted USB drive at the hand, please use M3 BitLocker Loadder for Mac to encrypt a USB drive on Mac via BitLocker.

M3 BitLocker Loader for Mac requires a healthy BitLocker-encrypted USB drive. If your BitLocker-encrypted USB drive has been corrupted, try the professional BitLocker data recovery software to save your data.

Step 6: Click "Open" icon under that BitLocker-encrypted USB drive.

Select BitLocker-encrypted drive on Mac

Step 7: Choose "Volume mounter" option at this step.

Mount BitLocker-encrypted drive on Mac

On the unlock window, there are two options to unlock BitLocker-encrypted drive.

  • File manager: It allows to browse the directories and preview the files from BitLocker-encrypted drive so that you can evaluate it before purchasing.
  • Volume mounter: Available in full version. It allows to mount BitLocker-encrypted drive in read-write mode, then you can operate this mounted drive as same as your Mac's native drive.

If you want to evaluate M3 BitLocker Loader for Mac before purchasing, please choose "File manager" option which allows to view and preview files.

View files in BitLocker encrypted drive on Mac

Step 8: Enter the password.

  • If it is BitLocker-encrypted OS drive, 48-digit BitLocker recovery key is the only way to unlock this drive.
  • If you have forgotten the password and lost 48-digit BitLocker recovery key, M3 BitLocker Loader for Mac doesn't and won't break into your BitLocker-encrypted drive. This is as much of a policy issue as it is a technological limitation. Read our article: How to unlock BitLocker drive without password and recovery key?

Step 9: Click Unlock to mount BitLocker-encrypted drive on your Mac.

Open BitLocker-encrypted drive on Mac

After mounting the BitLocker-encrypted drive in read-write mode, you can operate this drive in Finder as same as your Mac's native drive. For example, read (transfer files from BitLocker encrypted drive to your Mac), write, copy, delete, edit, rename.

Two things to do after reading/writing a BitLocker-encrypted drive on Mac:

Re-enforcing the encryption after unlocking the encrypted drive is important to enjoy BitLocker security. To avoid any disaster on the BitLocker drive, disconnecting properly is important. To disconnect properly from your Mac, here are two things you need to do:

1. Lock the encrypted drive: The first step is to re-enforce the encryption on the drive. To do this, click on the 'Lock' button to lock the drive.

Eject BitLocker-encrypted drive in M3 BitLocker Loader for Mac

2. Safely eject drive: The final step is to eject the drive first before unplugging from the Mac. Unplugging without ejecting first might cause file damage or damage the drive itself. To eject the drive, simply click on the 'Eject' button before safely unplugging it.

How to encrypt a USB drive on Mac via BitLocker?

As we know, BitLocker is the most truely secure encryption solution built-in Windows. Although Microsoft has not implemented BitLocker for Mac version, but M3 BitLocker Loader for Mac can encrypt a USB drive via BitLocker.

Tutorial to password protect a USB drive on Mac via BitLocker:

Step 1: Download and install M3 BitLocker Loader for Mac on your Mac.

Step 2: Insert a USB external hard drive into your Mac.

Step 3: Launch M3 BitLocker Loader for Mac.

Step 4: Click "Encrypt" button in the toolbar of M3 BitLocker Loader for Mac.

M3 BitLocker Loader for Mac

Step 5: After seeing the USB external hard drive, click Encrypt button located this USB hard drive.

Encrypt drive with M3 BitLocker Loader for Mac

Step 6: Enter the password. It is used to encrypt USB external hard drive and then unlock BitLocker-encrypted USB drive later.

Enter the password

Step 7: Click "Save to a file" or "Print the recovery key" to save 48-digit recovery key and then click Next.

Save the recovery key

Step 8: Click "Start encrypting". BitLocker drive encryption will take a while. Once it is completed, your USB external hard drive will be encrypted by BitLocker.

Start BitLocker drive encryption on Mac

During this encryption process, there is no program installed on your USB hard drive, so you don't need to worry about your data security.

After encrypting USB drive, you can use M3 BitLocker Loader for Mac to read and write BitLocker-encrypted USB drive on your Mac.

How to turn off BitLocker encryption from USB drive?

There are two methods according to if you have a Windows computer:

Method 1: Remove BitLocker encryption from USB drive on Mac:

Although M3 BitLocker Loader for Mac doesn't have "turn off BitLocker" function, but you can remove BitLocker encryption from the drive with following method:

Step 1: Back up the important data. Open BitLocker USB drive with M3 BitLocker Loader for Mac and then copy files out.

Step 2: Open Applications folder -> Utilities -> Disk Utility.

Step 3: Select that BitLocker-encrypted USB drive from the left panel.

Step 4: In Disk Utility, click Erase on the top menu and then erase the selected USB drive.

Erase BitLocker-encrypted USB drive on Mac

Method 2: Turn off BitLocker encryption from USB drive on Windows:

Windows 10 Professional and Enterprise edition have a built-in function to turn off BitLocker.

To remove the BitLocker password from the drive:

Step 1: Open the Search bar and type Control Panel.

Step 2: Double-click BitLocker Drive Encrypition.

Step 3: Expand the related BitLocker-encrypted drive.

Step 4: Click Turn off BitLocker option.

Turn off BitLocker

Step 5: Click "Turn off BitLocker" in the window.

After doing that, BitLocker should be permanently disabled on for the selected drive.

How to format a BitLocker-encrypted USB drive?

For Mac

Step 1: Install and launch M3 BitLocker Loader for Mac on your Mac.

Step 2: Enter the password to open BitLocker-encrypted USB drive.

Step 3: Back up the important data.

Step 4: Open macOS Disk Utility and erase the drive.

For Windows

Step 1: Enter the password or 48-digit recovery key to unlock the BitLocker-encrypted USB drive.

Step 2: Back up the important data.

Step 3: In Windows explorer, right click on the selected BitLocker-encrypted USB drive and then select "Format" option to format that drive.

BitLocker for Mac FAQ:

Q: Is BitLocker compatible with Mac?

A: Yes. With the help of M3 BitLocker Loader for Mac, BitLocker is compatible with Mac so that you can read/write BitLocker-encrypted drive on Mac.

Q: Does BitLocker work on Mac?

A: Yes. With the help of M3 BitLocker Loader for Mac, BitLocker can work on Mac.

Q: How do you unlock a BitLocker drive on a Mac?

A: Install M3 BitLocker Loader for Mac on your Mac and then enter the password to unlock BitLocker drive on this Mac.

Q: How do I open BitLocker for free on Mac?

A: Install M3 BitLocker Loader for Mac on your Mac and then enter the password to unlock BitLocker drive on this Mac.

Q: Is M3 BitLocker Loader for Mac safe?

A: Of course, offering a safe and reliable product is our mission. It won't steal any of your confidential information, business documents, or private pictures on your storage device. Check the customer review...

Q: Is there any Windows 10 BitLocker for Mac tool?

A: Yes, M3 BitLocker Loader for Mac is such tool which is compatible with Windows 10 BitLocker.

Q: I don't have the password and 48-digit BitLocker recovery key, iBoysoft Data Recovery can recover data from BitLocker-encrypted drive?

A: No, iBoysoft Data Recovery doesn't and won't break into BitLocker drive without the password and 48-digit recovery key.

Q: How to choose the best BitLocker for Mac tool?

A: Read our article: How to choose the best BitLocker for Mac tool for you? where lists 5 BitLocker for Mac apps.

Q: Is there any BitLocker equivalent for Mac?

A: Yes, please read our article: How to choose the best BitLocker equivalent for Mac.