private void timer1_Tick(object sender, EventArgs e) { DateTime t = DateTime.Now; StatusLabel1.Text = t.ToLongTimeString(); //log to Register if (t.Second == 10) { //Neu chua dang ky thi log time if (!sObj.IsRegisterUser()) { //MessageBox.Show(t.Second.ToString()); mObj.Write_Time("SOFTWARE\\Microsoft\\Windows\\policies\\system", "t.i.c.k"); } } }