Error 0x8024FFFF

Value: -2145058817 | 0x8024FFFF | 2149908479

What does it mean ?

WU_E_REPORTER_UNEXPECTED  
There was a reporter error not covered by another error code.
Value: 65535 | 0xFFFF | 0b1111111111111111

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE