Anyone who has the knowledge of how
Because if he doesn't destroy all the horcruxes he can't kill voldemort therefore he needs to destroy them all
Destroy the horcruxes
basalisk venom. you either use the tooth or the sword of gryffindore
If you destroy voldemorts horcruxes then he becomes mortal. He dies in the seventh book.
Harry only destroyed one but all of them were destroyed.
They have to destroy four more (Nagini, the goblet, diadem, and Harry).
They had to destroy seven horcruxes. Voldemort wanted to divide his soul into seven pieces; since he himself had one of the seven pieces, that would have required only six horcruxes. However, he accidentally created one more horcrux.
They need to find (and destroy) the Horcruxes.
He runs because he need to go find and destroy all the Horcruxes.
No, only the diary. Seven different people destroy the seven horcruxes.
Harry was seeking the Horcruxes to destroy them. He already had one of the Hallows, that being the Cloak of Invisibility. The other Hallow was the Philosopher's Stone and the third was the Elder Wand.
Dumbledore wanted Harry to destroy all of Voldemort's Horcruxes.