In this post, you’ll learn more about the Error FVE_E_EDRIVE_NO_FAILOVER_TO_SW – 0x803100AF that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_EDRIVE_NO_FAILOVER_TO_SW – 0x803100AF
Win32 COM Error Error Description
BitLocker did not revert to using BitLocker software encryption due to group policy configuration.