* Harry's failure to destroy one of the Horcruxes
* Harry's inability to prevent the destruction of the Ministry of Magic
* Harry's failure to capture the Death Eaters who escaped from Azkaban
* Harry's inability to prevent the battle of Hogwarts
* Harry's inability to save Dobby the house-elf
* Harry's inability to prevent the death of Hedwig, his owl
* Harry's inability to prevent the death of Remus Lupin and Nymphadora Tonks