In this post, you’ll learn more about the Error FVE_E_NOT_ALLOWED_IN_SAFE_MODE – 0x80310040 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_NOT_ALLOWED_IN_SAFE_MODE – 0x80310040
Win32 COM Error Error Description
The BitLocker configuration of the specified drive cannot be managed because this computer is currently operating in Safe Mode. While in Safe Mode, BitLocker Drive Encryption can only be used for recovery purposes.