Error 0x80280061

Value: -2144862111 | 0x80280061 | 2150105185

What does it mean ?

TPM_E_PERMANENTEK  
Attempt to revoke the EK and the EK is not revocable.
Value: 97 | 0x0061 | 0b0000000001100001

Where does it come from ?

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

Other Errors for FACILITY_INK