Error 0x80244FFF

Value: -2145103873 | 0x80244FFF | 2149863423

What does it mean ?

WU_E_PT_UNEXPECTED  
There was a communication error not covered by another WU_E_PT_* error code
Value: 20479 | 0x4FFF | 0b0100111111111111

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE