Error 0x803100A0

Value: -2144272224 | 0x803100A0 | 2150695072

What does it mean ?

FVE_E_NO_EXISTING_PIN  
This drive isn't protected with a PIN.
Value: 160 | 0x00A0 | 0b0000000010100000

Where does it come from ?

FACILITY_FVE  
Full volume encryption
Value: 49 | 0x031 | 0b00110001

Other Errors for FACILITY_FVE