Error 0x80070789

Value: -2147022967 | 0x80070789 | 2147944329

What does it mean ?

RPC_S_GRP_ELT_NOT_REMOVED  
The group element could not be removed.
Value: 1929 | 0x0789 | 0b0000011110001001

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

Other Errors for FACILITY_WIN32