How to unlock external hard drive

1. Guide locking the drive (encryption) with Bitlocker software

Step 1: Right-click the drive you want to lock on Turn on BitLocker.

Right-click on the drive you want to lock on Turn on BitLocker

Step 2: Use the password box to unlock the drive and enter the password in the box Enter your password and Reenter your password. Then click the Next button.

Enter a password to unlock the drive and enter the password in the box Enter your password and Reenter your password.  Then click the Next button

Step 3: Back up your backup keys when you forget your password. You can save anywhere in the options:

Save to your Microsoft account: Save to your Microsoft account

Save to a USB flash drive: Save to USB

Save to a file: Save to a computer

Print the recovery key

When done, click Next to continue.

 

Note: You must save the backup key when the Next button lights up for you to press

Save backup key

Step 4: BitLocker will automatically encrypt when you add new files to the drive. However, you need to select the encoding for the files already on the drive.

There are two options

Encrypt used disk space only: Only encrypts the space used on the drives. Recommended for new computers - faster.

Encrypt entire drive (slower but best for PCs and drives already in use): Encrypt entire drive. Recommended for computers that have been using for some time - slower.

When done, click Next.

Choose how BitLocker encrypts data

Step 5: In this step there are two options: 

New encryption mode: If you lock the hard drive on the computer, select this option.

Compatible mode: If the removable drive key can be moved to another device, select this option.

Finished, click the Next button to continue.

Select the encrypted drive type

Step 6: Click the Start encrypting button.

Click the Start encrypting button

Step 7: BitLocker starts encrypting the drive. You can still use the computer when the encoding process takes place, but will make the encoding process a bit slower.

BitLocker starts encrypting the whole drive

Step 8: Notice the data encryption on the drive successfully, click Close to close the message.

Click the Close button

Once the encryption is complete, the drive will be locked the next time you boot, you need to unlock it to use.

The drive letter is locked with BitLocker (as shown in Figure D).

Drive D is locked to BitLocker

2. Guide to unlock the drive (only need to unlock every time the computer boots)

Step 1: Right-click on the locked drive with BitLocker and select Unlock Drive ... 

Right-click on the locked drive and select Unlock Drive ...

Step 2: Enter the password and press the Unlock button.

Enter the password and click the Unlock button

The drive will now be unlocked (as shown in Figure D).

Drive D is unlocked with Bitlocker

3. How to change password lock drive

Step 1: Unlock the drive with the old password.

Step 2: Right-click on the drive and select Change BitLocker password.

Right-click on the drive and select Change BitLocker password

Step 3: Enter the old password into the Old password box and enter the new password in the New password box and Confirm new password and click the Change password button.

Enter your old password and click Change password

Step 4: After the message appears The password has been successfully changed is that you have changed the password successfully.

Successful password change notification

4. How to use the backup password when forgetting password

Step 1: Right click on the drive select Unlock Drive ... 

Right click on drive select Unlock Drive ...

Step 2: At the password input window, click on More options.

Click on More options

Step 3: Continue to press enter recovery key.

Click the Enter recovery key

Step 4: Open the recovery key when you set BitLocker, copy (key) in the Recovery Key.

Copy the key in the Recovery Key

Step 5: Paste this key into the BitLocker unlocking box and press the Unlock button.

Enter this key into the BitLocker unlocker and press the Unlock button

5. Open the BitLocker management page

Option 1: Right-click on the locked drive with BitLocker (unlocked) and select Manage BitLocker.

Right-click on the locked drive with BitLocker (unlocked) and select Manage BitLocker

Method 2:

Step 1: Open the Control Panel 

Step 2: Select System and Security (Note the View by Category mode).

Select System and Security (note the View by Category mode)

Step 3: Click on Manage BitLocker.

Click the Manage BitLocker line

Step 4: BitLocker management interface. Here you can back up your backup keys, change passwords, delete passwords, turn on auto-unlock, turn off BitLocker.

BitLocker management interface

6. How to unblock the drive (turn off BitLocker)

Step 1: Go to the BitLocker management page (see instructions in section 5).

Step 2: Click the Turn off BitLocker line in the section where you want to turn off BitLocker. When the confirmation window appears, click the Turn off Bitlocker button.

Click the Turn off BitLocker line in the section where you want to turn off BitLocker.  When the confirmation window appears, click the Turn off Bitlocker button.

Step 3: Begin the decoding process. Once decrypted, it means that the drive will be unlocked.

Start the decryption process, unblock BitLocker

Good luck!!!