Error 0x8024401F

Value: -2145107937 | 0x8024401F | 2149859359

What does it mean ?

WU_E_PT_HTTP_STATUS_SERVER_ERROR  
HTTP 500 - an error internal to the server prevented fulfilling the request.
Value: 16415 | 0x401F | 0b0100000000011111

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE