Often, antivirus software flags the settings.exe as a false positive. Check your "Quarantine" or "Virus Chest" and restore the file if it was blocked.
Do download settings.exe from random file-sharing sites (like settings.exe download links on forums or dubious "DLL" websites). These are common vectors for malware, trojans, and keyloggers disguised as game configuration files. pes 2015 pc settings.exe download
This usually means you are missing DirectX or .NET Framework files. Reinstall the "Redist" folder components found inside your game directory. Often, antivirus software flags the settings