How can I make it so chara wont appear at the True Pacifist ending?

[SauceQue]

Recently I've completed Undertale on the neutral route(then did it again afterwards)

Then I made the worst mistake of my life by doing a Genocide Route first instead of a True Pacifist. I didn't realize the consequences of giving Chara your soul at the Genocide end, but as soon as I completed the end of the True Pacifist Route, (I chose to live with Toriel) Frisk was in bed, a few seconds later, Frisk turned into Chara and was staring at me with red eyes. The screen then cut to black with a lower pitched version of Flowey's laugh. I told my friend about this, and he said that everyone I spared on the Pacifist Route is dead.

If you complete the Genocide route, it permanently alters your Pacifist ending basically. Which was Chara killing everyone. The Genocide Route makes it so you wanna stop playing. And I've heard MOST people have stopped playing Undertale because of it. It makes it so you can feel terrible about killing everyone.

Fans commonly call it the Soulless Pacifist Route because, you gave Chara your soul and she'll possess you at the end

^(most the text above explains the genocide route consequences)

The whole reason why I did Genocide first is because I wanted to fight Sans, he seemed like a hard fight. But I managed to beat him.

If there's any way of making it so it's not Soulless, tell me, if I need to reinstall the game or anything else.(Currently no way to make so it's not Soulless in-game. Even a True Reset doesn't change it).

[That70sKid]

You can find a genocide remover online. Not sure how it works, but it apparently works on Steam copies of Undertale.

[SauceQue]

i'll probably try that out, if i can't find any i'll probably just reinstall

[SQVeemo]

This is why you don't do Geoncide first you idoit. You should've done Pacifist first.