Error 0x8024004B

Value: -2145124277 | 0x8024004B | 2149843019

What does it mean ?

WU_E_ORPHANED_DOWNLOAD_JOB  
An orphaned downloadjob was found with no active callers.
Value: 75 | 0x004B | 0b0000000001001011

Where does it come from ?

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

Other Errors for FACILITY_WINDOWSUPDATE