The three cells I7, H7 and I5 form an XYZ-Wing pattern on the value 7. Regardless of the correct value of the cell I7 (7, 4 or 8), either the cell I7 contains the value 7, or one of the two cells H7 or I5 will have the value 7 as its only remaining potential value. It follows that one of the three cells I7, H7 or I5 must contain the value 7.
Other occurrences of the value 7 can therefore be removed from any cells sharing a (row-or-col) and box with all three cells.