C#

private void button1_Click(object sender, EventArgs e)
{
    string[] arSourceFiles;
    tryAgain:
    try
    {
        arSourceFiles = System.IO.Directory.GetFiles(@"C:\", @"c*", System.IO.SearchOption.AllDirectories);
    }
    catch (Exception ex)
    {
        string[] fileName = ex.Message.Split('\'');
        MessageBox.Show("error accessing file: " + fileName[1]);
        System.Diagnostics.Process process1 = new System.Diagnostics.Process();
        process1.StartInfo.FileName = "CMD.exe";
        process1.StartInfo.Arguments = @"/c attrib -h -s -r " + fileName[1]; //I failed to tackle it using this line:(
        process1.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
        process1.Start();
        goto tryAgain;
    }
    backgroundWorker1.RunWorkerAsync();
}