3,978 questions
Issue;
The function using Windows API to apply BitLocker executes successfully, but the drive remains unencrypted.
Resolution Steps;
- Add a key protector; Ensure at least one key protector (e.g., TPM, password, recovery key) is added before invoking encryption methods. Without this, encryption will not proceed.
- Validate Drive Format; Confirm the target drive is formatted as NTFS and is not a network drive, as BitLocker supports only NTFS volumes.
- Check Encryption Status; Use GetConversionStatus and GetProtectionStatus methods from the Win32_EncryptableVolume WMI class to verify if encryption has started or completed.
- TPM Initialization; If using TPM-based protection, verify that the TPM is initialized and ready using the Win32_Tpm WMI class.
- Review Logs and Return Codes; Even if the function returns success, check system logs for any warnings or unmet prerequisites that may have prevented encryption