When we try to use M3 Bitlocker Loader to encrypt the Windows system partition, M3 Bitlocker Loader will prompt "Cannot encrypt system partition, please choose another partition and try again!" error. This error means that M3 Bitlocker Loader does not support encryption of Windows system partition (C: drive).
Hasleo BitLocker Anywhere For Windows is the world's first all-in-one BitLocker solution for Windows 11/10/8/7 Home & Windows 7 Pro, it supports encryption of Windows system partition (C: drive) and data partitions. This tutorial will teach you how to fix 'Cannot encrypt system partition, please choose another partition and try again' error for M3 Bitlocker Loader with Hasleo BitLocker Anywhere For Windows.
Step 1. Download and install Hasleo BitLocker Anywhere For Windows.
Step 2. Launch Hasleo BitLocker Anywhere For Windows, right-click the Windows system partition drive letter (usually C:), then click "Turn On BitLocker".
Step 3. In this step, you are asked to choose how to unlock the Windows drive at startup. Please select Enter a password to start the computer.
Step 4. Now you are required to specify a password for encrypting the drive, enter the password and click "Next". You should choose a password having a combination of upper and lower case letters, numbers, spaces, and special symbols.
Step 5. After clicking "Next", you are asked how you want to backup the BitLocker recovery key. You can save the recovery key to a file or print a copy of it, then click "Next" to move on. Please note that anyone can use the recovery key to gain access to the drive, even if they do not have the password created in the previous step, so please do not disclose it to others.
Step 6. Now a pop-up will appear asking you if you want to reboot into Pre-OS to encrypt the Windows partition. Click "Yes" to continue.
Step 7. Another pop-up will appear asking you if you want to build a WinPE image to continue. Click "Yes".
Step 8. Hasleo BitLocker Anywhere starts building WinPE. This may take several minutes, so please be patient to wait.
Step 9. After successfully builded the WinPE image, Hasleo BitLocker Anywhere will prompt you to reboot the computer, click "Yes" button to allow Hasleo BitLocker Anywhere to reboot your computer.
Step 10. Hasleo BitLocker Anywhere will now reboot and enter Pre-OS to encrypt the contents of the selected drive using BitLocker drive encryption. The encryption process could take a long time to finish depending on the size of the drive, so please be patient to wait. If you don't want to wait until the encryption operation is finished, "Shut down the computer when the operation is completed" option is a good idea. Just check it.
Step 11. After the encryption is complete, click the "Finish" button to close the window.
Step 12. Now you have to enter the BitLocker password before you can start the Windows.
As mentioned above, Hasleo BitLocker Anywhere For Windows can help you encrypt Windows system partition (C: drive), it is the best software which can help you fix 'Cannot encrypt system partition' error for M3 Bitlocker Loader. In addition, Hasleo BitLocker Anywhere For Windows supports decrypting BitLocker partitions and changing password for BitLocker encrypted partitions, these features are not supported by M3 Bitlocker Loader, so I can say that Hasleo BitLocker Anywhere is the best BitLocker solution for Windows Home Edition.
