how to write a code to take immediate effect without restart pc

private void Button10_Click(object sender, EventArgs e)
{
    Counter = 60;            
    try
    {
        if (voldis.Checked)
        {
            RegistryKey systemRegistry = Registry.CurrentUser.CreateSubKey("\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
            systemRegistry.SetValue("NoDrives", 0x3ffffff);
        }
        else if (volena.Checked)
        {
            RegistryKey systemRegistry = Registry.CurrentUser.CreateSubKey("\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
            systemRegistry.SetValue("NoDrives", 0);
        }
    }
    catch (Exception)
    {
        MessageBox.Show("Run this application as Admin to Enable or Disable", "@Need Administrator@");
    }
    DialogResult dialogResult = MessageBox.Show("PC have to reboot for effective", "Attention", MessageBoxButtons.YesNo);
    if (dialogResult == DialogResult.Yes)
    {
        Process.Start("shutdown", "-R -t 00"); //>>>how to write a code to take immediate effect without restart pc
    }
}