Error 0x80280400

Value: -2144861184 | 0x80280400 | 2150106112

What does it mean ?

TPM_E_COMMAND_BLOCKED  
The command was blocked.
Value: 1024 | 0x0400 | 0b0000010000000000

Where does it come from ?

FACILITY_INK  
Microsoft Tablet PC
Value: 40 | 0x028 | 0b00101000

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