How to Open a BitLocker Drive on Mac
Published October 11, 2026 · Updated October 21, 2026
What a Mac shows when you plug in a BitLocker volume
Usually nothing at all, or a locked volume that refuses to open. The drive is fine. BitLocker encrypts the whole NTFS volume with AES, and macOS has no component that can decrypt that layer, so from Finder's point of view the disk is unreadable.
DiskBee adds the missing component. Its BitLocker engine handles volumes created by Windows 7 or later, including XTS-AES 128/256 and the older AES-CBC compatibility mode.
Unlocking the volume
After that the volume appears in Finder like any other disk. Copy, rename and delete files there; no Windows machine is involved at any point.
- Connect the drive and open DiskBee. The drive list marks it as BitLocker-locked.
- Choose unlock, then type the BitLocker password or the 48-digit recovery key. On a company laptop the key normally comes from IT.
- Tick "Remember in Keychain" if you want later mounts to unlock themselves. Tick "Mount as read-only" if all you need is to copy files out.
Where the written data goes
Each block is encrypted before it reaches the platters or flash, so unencrypted content never sits on the drive. Unplug it, attach it to a Windows PC, type the same password, and Windows sees the same files.
Unplugging mid-write is handled the way Windows handles it. NTFS journaling repairs the metadata on the next mount, and the worst case is one incomplete file.
Which volumes are accepted
NTFS volumes encrypted by Windows 7 or later open normally. Three situations do not:
- BitLocker To Go sticks, which are FAT32 or exFAT inside;
- volumes paused halfway through encryption or decryption, which need to finish on Windows first;
- volumes locked by TPM alone, with no password and no recovery key.
If the password is lost
There is no master key. The password or the 48-digit recovery key is the only way in. Personal devices usually have the key stored at account.microsoft.com; company devices keep it with IT. Without it the data stays encrypted, which is exactly what BitLocker was built to guarantee.
Frequently asked questions
- Can a Mac read a BitLocker drive?
- Not on its own. With DiskBee installed, the volume unlocks after you enter the password or the 48-digit recovery key, and both reading and writing work. The free tier stops at browsing and copying files out; Pro enables full write access.
- Do I have to re-encrypt the drive after writing to it from a Mac?
- No. Writes are encrypted to the BitLocker standard as they happen, so the volume stays in the same format. Windows opens it with the existing password and sees the new files.
- What if I have neither the password nor the recovery key?
- The data cannot be recovered, by DiskBee or by anyone else. Personal Microsoft accounts keep recovery keys at account.microsoft.com; managed devices store them with the IT department.
Read and write NTFS drives on your Mac
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