Install Instructions

Go to AppData\Local\Hogwarts Legacy\Saved\Config\WindowsNoEditor and find Engine.ini
You can find AppData by pressing the Windows key + R and entering "appdata" (without quotations)

Before you edit it you should backup Engine.ini by copying it and pasting it somewhere else

Open Engine.ini with any text editor

Copy the text from the hlfix.txt file and paste it at the bottom of the Engine.ini

Based on your amount of VRAM, you should change r.Streaming.PoolSize to the appropriate amount

2048 for 6GB of VRAM and below
3072 for more than 6GB of VRAM
4096 for more than 8GB of VRAM
5120 for more than 12GB of VRAM

After this, save and it should work, if it doesn't work restarting your pc could help.