How to turn off or disable BitLocker encryption in Windows 10?
How to turn off or disable BitLocker in Windows 10 Home edition?
If you want to turn off BitLocker encryption entirely on your drive, follow these steps:
Step 1: Click the magnifying glass to open search, type "cmd", and right-click on cmd.exe in the list of results. Click on "Run as administrator" in the right-click menu.
Step 2: Enter the following commands at the command line prompt: manage-bde -off X: (replacing "X" with whatever drive letter has been assigned to the encrypted volume) and press Enter.
Step 3: Close the command prompt window.
This command turns off BitLocker encryption on that drive so the data will no longer be protected with its encryption.
How to disable or turn off BitLocker in Windows 10 Professional or Enterprise?
There are five methods to turn off or disable BitLocker drive encryption in Windows 10 Professional or Enterprise edition:
Option 1: Disable BitLocker from Windows 10 Control Panel
Step 1: Open the Search bar and type Control Panel.
Step 2: Double-click BitLocker Drive Encrypition.
Step 3: Expand the related BitLocker drive.
Step 4: Click "Turn off BitLocker" option.
Step 5: Click "Turn off BitLocker" in the window.
After doing that, BitLocker should be permanently disabled on for the selected drive.
Option 2: Disable BitLocker with Command Prompt
If you're an advanced user, you can turn off BitLocker by using Command Prompt.
Step 1: Open Command Prompt as administrator. To do that quickly press Windows Key + X to open Win + X menu and choose Command Prompt (Admin) from the menu.
Step 2: When Command Prompt opens, enter manage-bde -off X: command and run it (Replace X with the drive letter of your BitLocker drive).
Option 3: Use another Windows 10 computer to disable BitLocker
If both methods have failed, then all you're left with is connecting your BitLocker drive to a different computer and then try solution 1 and solution 2.
Option 4: Use PowerShell to disable BitLocker in Windows 10
Step 1: Press Windows Key + S and enter powershell. Right click Windows PowerShell from the list of results and choose Run as administrator.
Step 2: When PowerShell opens, enter Disable-BitLocker -MountPoint "X:" command and press Enter to run it (Replace X with the drive letter of your BitLocker drive).
BitLocker drive decryption process will take a while, so please don't interrupt it. Once the drive is decrypted, BitLocker will be turned off for that drive.
Option 5: Disable BitLocker in Windows with BitLocker password brute-force cracking tool
If we lost the password or BitLocker recovery key, the BitLocker drive cannot be unlocked/decrypted without the password or BitLocker recovery key. In this situation, we need the 3rd BitLocker password brute-force cracking tool, such as Passware Password Recovery Kit, Elcomsoft Forensic Disk Decryptor, Thegrideon BitLocker Password which can help to unlock BitLocker drive by running an attack.