Error 0x80072135

Value: -2147016395 | 0x80072135 | 2147950901

What does it mean ?

Tree deletions starting at an object which has an NC head as a descendant are not allowed.
Value: 8501 | 0x2135 | 0b0010000100110101

Where does it come from ?

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