Error 0x80310008

Value: -2144272376 | 0x80310008 | 2150694920

What does it mean ?

FVE_E_NOT_ACTIVATED  
BitLocker Drive Encryption is not enabled on this drive. Turn on BitLocker.
Value: 8 | 0x0008 | 0b0000000000001000

Where does it come from ?

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

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