EndNote 9.0.1 + MS Word 2010: citations

Did everything like mentioned there.

Select output style “numbered”. After clicking “Insert selected citations” it also inserts undesirable text in that place, bibliography automatically change output style to “author-date” that undesirable too.

If you check compatiblity, I think you will find that Endnote 9 is not compatible with Word 2010.  You will need to upgrade to X4 or X5.