I Am An Air Traffic Controller 4 Application Not Found Verified -

Locate I am an Air Traffic Controller 4 and click the primary button.

To prevent the problem from recurring, add the entire ATC4 game folder as an exclusion. The official FAQ specifically mentions adding the ATC4_g folder or the AXA.exe file to the monitoring target of your security software. Locate I am an Air Traffic Controller 4

If the game starts successfully, you have resolved the issue. You can also try using Ntleas if you run into issues, as it has helped other users. If the game starts successfully, you have resolved the issue

If you are using a portable or standalone version and seeing this specific error, it often stems from the executable not being correctly targeted. Right-click your game shortcut and select Properties Right-click your game shortcut and select Properties :

: If you are using the Steam version, avoid using desktop icons. Launch the game directly from your Steam Library 株式会社テクノブレイン Verify Game Integrity (Steam)

: The lack of required audio or rendering packages, such as OpenAL.

The developer, TechnoBrain, explicitly states that cloud-synced folders can break the data paths required to pull save states and execute routines.