Error 0x80240028

Value: -2145124312 | 0x80240028 | 2149842984

What does it mean ?

WU_E_UNINSTALL_NOT_ALLOWED  
The update could not be uninstalled because the request did not originate from a WSUS server.
Value: 40 | 0x0028 | 0b0000000000101000

Where does it come from ?

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

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