NOTE: Always best to start at the topic as it includes info on using the much improved HE hub built-in ghost removal options, which are sufficient for removing most ghosts these days. Both the hub's built-in tools to remove ghosts, and the effectiveness of the instructions for using them (thanks to @jtp10181 in particular) have improved over time.
If the hub's built-in ghost removal tools aren't sufficient then time to use a UZB stick with the UZB instructions PDF.