In this post, you’ll learn more about the Error FVE_E_VOLUME_HANDLE_OPEN – 0x80310059 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_VOLUME_HANDLE_OPEN – 0x80310059
Win32 COM Error Error Description
BitLocker Drive Encryption is already performing an operation on this drive. Please complete all operations before continuing.