I don't get any error message if type a faulty computer name
Can someone help me, how I can get it done?

HTML Code:
try
            {
                buttonStatus.Enabled = false;
                statusComputer = textBoxComputer.Text;
                ProcessStartInfo status = new ProcessStartInfo("cmd");
                status.Arguments = "/c systeminfo /s " + statusComputer + " | findstr /B " + winVersion + " " + osName + " " + systemInfo + " " + installDate;
            

                //mesessageBox.Show(checkComputer);
                status.UseShellExecute = false;
                status.CreateNoWindow = true;
                status.WindowStyle = ProcessWindowStyle.Hidden;
                status.RedirectStandardOutput = true;
                status.RedirectStandardInput = false;

                var prog = Process.Start(status);

                string statustext = prog.StandardOutput.ReadToEnd();
                richTextBoxStatus.Text = statustext;
                MessageBox.Show("Task completed!");
            }
            catch 
            {
                MessageBox.Show("Error!");
            }
            buttonStatus.Enabled = true;