PKHeX/PKHeX.WinForms/Util/ConfigUtil.cs

using System.Configuration;
using System.IO;

namespace PKHeX.WinForms
{
    public static class ConfigUtil
    {
        public static bool CheckConfig()
        {
            try
            {
                ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoamingAndLocal);
                return true;
            }
            catch (ConfigurationErrorsException e)
            {
                var path = (e.InnerException as ConfigurationErrorsException)?.Filename;
                if (path != null && File.Exists(path))
                    File.Delete(path);
                return false;
            }
        }
    }
}