Harry would likely enter Hogwarts with a more confident and carefree attitude. His parents could have given him valuable advice about the school, like which professors to befriend and which ones to be cautious of. He might also have some family - related advantages, such as access to special magical items passed down from the Potter family. And without the shadow of his parents' death, he could fully enjoy his time at Hogwarts, participate in more school activities, and not be as isolated as he was in the original story.
During his Hogwarts years, Harry would have a strong support system from home. His parents could visit him at Hogwarts more often, bringing him treats and helping him with any problems he faced. He wouldn't have to face Voldemort alone in his mind like he did in the original. Instead, he could have shared his concerns with his parents. Also, his relationships with his classmates might be different. For example, he might not have been as close to Ron and Hermione in the same way, because he wouldn't have had that need for a family - substitute relationship. His Hogwarts years would be more of a normal, happy school experience rather than a journey filled with danger and self - discovery related to his parents' death.
Well, Harry would likely be much more confident at Hogwarts. With his parents alive, he would grow up in a loving and magical home environment. This would translate into his school life. He would probably be more social and make friends more easily. He might also be less likely to get into dangerous situations with Voldemort. His parents could even be involved in the school in some way, like teaching a special class or being on the board of governors. This would give Harry a certain amount of privilege and protection that he didn't have in the original story.
Hermione and Ron might not become friends in the same way. Since Harry was the catalyst for their friendship at Hogwarts, without him there, they might not cross paths as easily. Hermione could be more focused on her studies alone in a different school, and Ron might be stuck in his family's shadow without Harry to bring out his better qualities.
Well, it would probably strengthen his relationship with his friends. His friends would be happy for him to have his parents back, and it could lead to more group activities like family - style outings. For instance, they might all go on picnics together with Harry's parents.
Well, it could make Harry feel a strange connection to the spirit world at Hogwarts. He might be more attuned to the ghosts there, seeking advice from them as if they were his parents. It could also make him a bit of an outcast as his situation is so unusual. Maybe he'd have special powers related to interacting with the spirit realm that others don't have.
One possibility is that Harry would grow up in a loving family environment. He would be trained by his father, James, and mother, Lily, in magic from a young age. The wizarding world would be a much different place as Voldemort might not have been as bold in his attacks without the Potters' deaths fueling his fear among his enemies. Harry might also have a normal Hogwarts experience without the burden of being 'The Boy Who Lived' and avenging his parents.
Well, he'd probably be more of a legacy student. He might be treated with even more respect or envy from the start. And he could have a different group of friends. Instead of Ron and Hermione, he might be closer to his brother's old gang, like Sirius and Remus, from the very beginning at Hogwarts.
His diet at Hogwarts would be a major change. Instead of eating normal food, he would need blood. He might have to find some discreet way to get it. His sleeping habits could also be different. And he would probably be the center of a lot of rumors and fear among the students.
His relationships would likely be very different. For one, he might be more of an outsider. The other students grew up in the wizarding world in a more common way, while Harry was raised by the Flamels. He could be seen as having an unfair advantage in terms of magic knowledge. But on the other hand, he might also be respected more for his unique upbringing.
His classes would be a struggle. For example, in Potions, the smell of the ingredients might be overwhelming to his new vampire senses. And in Defense Against the Dark Arts, he might have a new perspective on dark creatures since he is now one of them.
He'd likely have to keep his vampire identity a secret. He might not be able to participate in some daytime activities or classes that take place outdoors during the day. His diet would be a huge issue, having to find a way to get blood without being discovered.