You can check the graphics card model you are currently using by clicking Device Manager > Display Adapters.

※ [Device Manager] can be easily found through Control Panel search.

Go to the website of the graphics card manufacturer you are using through a web browser, download the latest version of the driver appropriate for the graphics card installed on your PC, and then download it.
Install the driver.

※ The Dekaron website data room provides links to driver download pages for some graphics card manufacturers, and you can also download graphics card drivers through these.

※ An error may occur if you install the graphics card driver when running the game, so please install the Dekaron exit driver.

Once the graphics card driver installation is complete, reboot your PC and the latest version of the driver will be applied.