In this post, you’ll learn more about the Error FVE_E_POLICY_REQUIRES_STARTUP_PIN_ON_TOUCH_DEVICE – 0x803100B7 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FVE_E_POLICY_REQUIRES_STARTUP_PIN_ON_TOUCH_DEVICE – 0x803100B7
Win32 COM Error Error Description
Group Policy settings require the creation of a startup PIN, but a pre-boot keyboard is not available on this device. The user may not be able to provide required input to unlock the volume.