Voldemort finally died, because Harry Potter destroyed Voldemort's seven vessels for storing souls, Voldemort finally died at the hands of Harry Potter, and there was no chance of resurrection.

When Voldemort was studying, he divided his soul into seven pieces and hid it in six different containers, but the last piece of soul bounced on Harry when he was preparing to kill Harry Potter, which is also an important reason why Harry can see what Voldemort is doing through his own thoughts. Harry was in a coma for a while after being subjected to Voldemort's dark magic, which is the embodiment of Voldemort's killing his own soul. It was at this time that Harry saw Dumbledore in the depths of his consciousness, knew the origin of Voldemort's horcrux, and knew why there were words that predicted that he would kill him.

Harry Potter, who pretended to be in a coma, entered Hogwarts Castle with the army of Death Eaters, where Harry got elder wand and the invisibility cloak. With the help of the invisibility cloak, he escaped from the sight of the Death Eaters and successfully outwitted Voldemort.

Later, with the help of his partner, he successfully left the castle where the death eaters gathered. Then in the case of Voldemort's anger, he took off his invisibility cloak and fought to the death with Voldemort. What was the first magic Harry learned? Except your weapon? This seemingly chicken-ribbed magic saved Harry's life at this critical moment, because Voldemort said? Avada killed himself? Harry removed his weapon before the spell, so in the end Harry won the war.

After this war, everything was restored to its original state, and the magical world was restored to peace. Because all seven horcruxes were removed, Voldemort never had a chance to resurrect and disappeared from the world. Just like at the end of the novel, when married Harry went to the King's Three-Quarter Station to see off his children, he said that after more than ten years, the scar left by Voldemort never hurt again, which means that Voldemort never appeared again, and the magical world can be calm from now on.