Error 0x80245103

Value: -2145103613 | 0x80245103 | 2149863683

What does it mean ?

WU_E_SIH_VERIFY_STAGE_ENGINE  
Verification of the staged engine failed.
Value: 20739 | 0x5103 | 0b0101000100000011

Where does it come from ?

FACILITY_WINDOWSUPDATE  
Windows update
Value: 36 | 0x024 | 0b00100100

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