If an abnormal termination occurs while using Dekaron, this message is displayed to ensure safe information storage when attempting to reconnect while saving character information.

Even if it is inconvenient, please close all currently running Dekaron clients and try to reconnect after about 10 minutes.

If the same symptom occurs even after following the instructions above, please contact us again and we will check and provide assistance.

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.

"It is not a valid executable file." The error message is displayed when the Dekaron game executable file is damaged, and Dekaron must be reinstalled.

Please select the Dekaron client in which the error occurred in Control Panel > Uninstall Program and delete it.

Once deletion is complete, please download the installation file from the Dekaron website data room, install the client, and run the game again.

※ Damage to the game executable file may be caused by viruses, etc., and it is recommended that you update and scan your anti-virus program before downloading the installation file.

If the patch cannot proceed because there is a Dekaron client running before the patch, this message will be displayed and the game may not run.

If Dekaron is running, it is impossible to install the patch file. If there is a Dekaron client running, close it before proceeding with the patch.

If there is no Decaron client running, there may be a Decaron process running, so terminate it before proceeding with the patch.

※ How to end the Dekaron process
- Quit [dekaron.exe] in Task Manager or reboot the PC.

The Dekaron installation file can be installed from the download page at the top of the homepage.

Please make sure you have at least 4GB of free space on your hard disk (8GB or more in total when installing the game).

Additionally, to run the game smoothly, please check whether the graphics card driver is updated and Direct X version (9.0C or higher) is installed.