This guide will walk you through the process of using Bitlocker to lock and password-protect your external drives in Windows 10 and 11. You will learn how to enable encryption, unlock your drive, and even retrieve your recovery key if you forget your password, all without needing third-party software. Follow these steps to keep your data secure from unauthorized access.

Step 1: Connect Your External Drive

Begin by connecting your external SSD or external drive (you can also use a Micro SD card) to your computer’s USB port. Open the File Explorer and navigate to This PC. You should see your external drive listed (for example, Drive E).

Step 2: Enable Bitlocker

Right-click on the external drive icon and select Show more options, then click Enable BitLocker. A new window will appear where you will check the box that says Use a password to unlock the drive.

Step 3: Set a Password

Enter a strong password for your external drive, then confirm it by typing it again. Ensure that this password is secure to protect your data. Click Next.

Step 4: Save Your Recovery Key

In the following window, you will be prompted to create a backup of the password recovery key in case you forget your password. Click Save this recovery key, choose a location (like Desktop), and click Save. A text file containing the recovery key will be created.

Step 5: Choose Encryption Type

Next, you have the option to select either Encrypt used disk space only or Encrypt entire drive. The first option is quicker but less secure as it may leave space for recovery of deleted files. Choose the option based on your security needs, then click Next.

Step 6: Select Compatibility Mode

In the next screen, choose Compatible mode and then click Start encrypting. Keep in mind that the encryption process may take some time depending on the size of your drive.

Step 7: Disconnect and Reconnect Your Drive

Once encryption is complete, you will notice a lock icon on your drive. Disconnect the external drive and reconnect it to see the locked status. If you attempt to open the drive, a prompt for the password will appear.

Step 8: Unlocking the Drive

To unlock the drive, double-click on its icon, enter your password in the prompt, and click Unlock. The icon should change to an open lock, granting you access to your files.

Step 9: Recovering Without the Password

If you forget your password, disconnect the drive, then reconnect it. Open the text file containing your recovery key. When prompted for the password, select Additional options, then paste your recovery key by pressing Ctrl + V. Click Unlock to access your drive.

Step 10: Disabling Bitlocker

To disable Bitlocker, right-click on the drive, select Manage BitLocker, then click on Turn off BitLocker. Confirm the action. The drive will be decrypted, and you will see the standard drive icon once complete.

Extra Tips & Common Issues

Ensure that you remember your password and securely store your recovery key. Avoid using easily guessable passwords. If you encounter issues during encryption, ensure that the drive is properly connected and try re-initializing the Bitlocker process.

Following these steps will help keep your external drive secured with Bitlocker, providing peace of mind when working with sensitive data.

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