Error 0x80073CF7

Value: -2147009289 | 0x80073CF7 | 2147958007

What does it mean ?

ERROR_INSTALL_DEREGISTRATION_FAILURE  
Package could not be unregistered.
Value: 15607 | 0x3CF7 | 0b0011110011110111

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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