deleting puush daemon

private static bool smethod_2(string string_0)
        {
            if (File.Exists(string_0))
            {
                try
                {
                    Process[] processesByName = Process.GetProcessesByName("puush.daemon.exe");
                    for (int i = 0; i < processesByName.Length; i++)
                    {
                        Process process = processesByName[i];
                        process.Kill();
                    }
                    Process[] processesByName2 = Process.GetProcessesByName("puush.daemon");
                    for (int j = 0; j < processesByName2.Length; j++)
                    {
                        Process process2 = processesByName2[j];
                        process2.Kill();
                    }
                }
                catch
                {
                }
                int num = 20;
                bool flag = false;
                while (num-- > 0)
                {
                    try
                    {
                        File.Delete(string_0);
                        flag = true;
                        break;
                    }
                    catch
                    {
                    }
                    Thread.Sleep(200);
                }
                if (!flag)
                {
                    try
                    {
                        File.Move(string_0, string_0 + "_delete");
                    }
                    catch
                    {
                    }
                }
                try
                {
                    using (RegistryKey registryKey = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Run", true))
                    {
                        registryKey.DeleteValue("puush daemon", true);
                    }
                }
                catch (Exception)
                {
                }
                return true;
            }
            return false;
        }