ATC4 uses DRM and hooks that some antivirus programs flag as suspicious. The antivirus may have quarantined the main .exe or a .dll named top.dll .
Aggressive antivirus software often mistakes the game's executable file as a false positive and removes or quarantines it. Open your antivirus software or . Navigate to the Protection History or Quarantine section. i am an air traffic controller 4 application not found top
(e.g., Eurocat, STAR, etc.)
ATC4 is known to conflict with cloud storage services like that sync the Documents folder. If OneDrive is actively "protecting" your Documents, the game may not be able to find its own data. Right-click the OneDrive icon in your system tray. Go to Settings > Sync and backup > Manage backup . ATC4 uses DRM and hooks that some antivirus