Error 0x803100A5

Value: -2144272219 | 0x803100A5 | 2150695077

What does it mean ?

FVE_E_FULL_ENCRYPTION_NOT_ALLOWED_ON_TP_STORAGE  
BitLocker Drive Encryption only supports Used Space Only encryption on thin provisioned storage.
Value: 165 | 0x00A5 | 0b0000000010100101

Where does it come from ?

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

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