What does HRESULT 0x8031004F (FVE_E_DEBUGGER_ENABLED) mean?

FVE_E_DEBUGGER_ENABLED

The exact BitLocker condition

FVE_E_DEBUGGER_ENABLED (0x8031004F) identifies the point where boot debugging is enabled, changing the trusted startup environment that BitLocker is willing to seal against. Hardware-encrypted drives add firmware, storage-driver and drive-security state below the normal BitLocker volume provider. BitLocker can reject the hardware path before conversion starts, and policy may or may not permit a fallback to software encryption.

Hardware encryption is not inferred from the SSD marketing name. Verify the encryption method reported by BitLocker and the drive capability returned through the storage and volume-encryption providers.

Do not confuse it with a nearby failure

Keep this separate from kernel debugging after Windows has fully started; the relevant setting is the boot-debug configuration measured during startup. That distinction determines whether the next check belongs to policy, protector inventory, volume geometry, firmware, account escrow or the calling application's buffer contract.

Evidence that distinguishes the condition

• Record BCD debug and bootdebug values, active boot entry, hypervisor/debug transport, PCR profile and the result of the BitLocker system check.

manage-bde -status
powershell -NoProfile -Command "Get-CimInstance -Namespace root/cimv2/security/MicrosoftVolumeEncryption -Class Win32_EncryptableVolume"

State checks specific to FVE_E_DEBUGGER_ENABLED

References

• Microsoft: Encrypted hard drives
• Microsoft: GetHardwareEncryptionStatus method
• Microsoft: BitLocker operations guide
• Microsoft: Configure BitLocker policy