In this post, you’ll learn more about the Error FVE_E_LOCKED_VOLUME – 0x80310000 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_LOCKED_VOLUME – 0x80310000
Win32 COM Error Error Description
This drive is locked by BitLocker Drive Encryption. You must unlock this drive from Control Panel.