Bitlocker: Failed to enable silent encryption

Praveen Sekar 0 Reputation points

Hi team,

I am getting the below issues while enabling Bitlocker.

1) Failed to enable Silent Encryption. 

Error: The parameter is incorrect.


  • Provider [ Name] Microsoft-Windows-BitLocker-API
    [ Guid] {5d674230-ca9f-11da-a94d-0800200c9a66} EventID 851 Version 0 Level 2 Task 0 Opcode 0 Keywords 0x4000000000000000
  • TimeCreated [ SystemTime] 2021-05-24T04:39:42.8046831Z EventRecordID 19
  • Correlation [ ActivityID] {ff7b40e2-1946-4c2c-8113-88dfad826916}
  • Execution [ ProcessID] 10628
    [ ThreadID] 11236 Channel Microsoft-Windows-BitLocker/BitLocker Management Computer ****
  • Security [ UserID] S-1-5-18
    • EventData
    ErrorCode -2147024809

2) Failed to backup BitLocker Drive Encryption recovery information for volume C: to your Azure AD.

TraceId: {351ba3b2-b7d9-4678-9103-efab97e13fe0}

Error: The parameter is incorrect.

Event ID 846

Kindly help me to resolve this issue

Note: I have formatted my system and cleared TPM.

Microsoft Intune
Microsoft Intune
A Microsoft cloud-based management solution that offers mobile device management, mobile application management, and PC management capabilities.
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  1. Lu Dai-MSFT 28,236 Reputation points

    anonymous user Thanks for posting in our Q&A.

    To clarify this issue, please check if the device meets the system requirements in the following link:

    For EventID 851, this error may occur in that the device uses the legacy BIOS. We can read the following article to try to check the BIOS mode.

    For Event ID 846, this error may occurs in windows10, version 1809 devices. Please check the device version, if the device is 1809 version, it is suggested to try to update.

    Hope the above information will help.

    If the response is helpful, please click "Accept Answer" and upvote it.
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