var apppath = System.Reflection.Assembly.GetExecutingAssembly().Location;
            if (!HasAdministrativeRight())
            {
                RunElevated(apppath);
                Application.Current.Shutdown(0);
            }
        private bool HasAdministrativeRight()
        {
            var pricipal = new WindowsPrincipal(WindowsIdentity.GetCurrent() ?? WindowsIdentity.GetAnonymous());
            bool hasAdministrativeRight = pricipal.IsInRole(WindowsBuiltInRole.Administrator);
            return hasAdministrativeRight;
        }

        private void RunElevated(string fileName)
        {
            var processInfo = new ProcessStartInfo();
            processInfo.Verb = "runas";
            processInfo.FileName = fileName;
            try
            {
                Process.Start(processInfo);
            }
            catch (Win32Exception)
            {
                //Do nothing. Probably the user canceled the UAC window
            }
        }