Honkai Star Rail is a new space fantasy RPG by the creators of Genshin Impact.
Ride the Astral Express and discover the galaxy’s infinite wonders filled with thrills and adventures.
Meet new friends around the world and even run into some familiar faces.
Explore the universe’s wonders like a space station, a planet with eternal winter, a starship, and more.
The game has high-quality cinematics, innovative facial expressions, and an original score.
Go on an adventure with new friends and reimagine tactical combat using a brand-new command combat system.
In this guide, you’ll learn how to fix System Error 5151 in Honkai Star Rail.
How to Fix System Error 5151 in Honkai Star Rail
To fix System Error 5151 in Honkai Star Rail, you can try clearing the game’s cache files.
You can also try uninstalling and reinstalling the game.
Method 1: Clear the game’s cache files
- Press the WIN + R keys and search for “%applocaldata%”.
- Delete the “HoYoverse” folder.
- Press WIN + R keys and search for “regedit”.
- HKEY_CURRENT_USER > Software.
- Delete the “miHoYoSDK” folder and the “Cognosphere” folder.
- Launch Honkai Star Rail and check if the error is fixed.
Method 2: Uninstall and reinstall the game
- Search for “Control Panel” using Windows Search and open it.
- Programs > Uninstall a program > Honkai Star Rail.
- Right-click Honkai Star Rail and select “Uninstall”.
- Reinstall Honkai Star Rail and launch it.
Further reading
How to Take a Picture of any Square Flower Pot in the Master Control Zone in Honkai Star Rail
How to Take a Picture of any Space Anchor in the Master Control Zone in Honkai Star Rail
How to Take a Picture of a Food Order Robot in the Master Control Zone in Honkai Star Rail
