Error 0x8024201B

Value: -2145116133 | 0x8024201B | 2149851163

What does it mean ?

WU_E_UH_INVALID_TARGETSESSION   
The targeted session for install is invalid.
Value: 8219 | 0x201B | 0b0010000000011011

Where does it come from ?

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

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