In this post, you’ll learn more about the Error FVE_E_NOT_PROVISIONED_ON_ALL_VOLUMES – 0x803100C4 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_NOT_PROVISIONED_ON_ALL_VOLUMES – 0x803100C4
Win32 COM Error Error Description
This PC is not provisioned to support device encryption. Please enable BitLocker on all volumes to comply with device encryption policy.