c#获取系统信息

//************************//
        //系统信息检测
        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                RegistryKey key18= Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion");
                RegistryKey key19= Registry.LocalMachine.OpenSubKey(@"HARDWARE\DESCRIPTION\System\CentralProcessor\0");
                RegistryKey key20 = Registry.LocalMachine.OpenSubKey(@"HARDWARE\DESCRIPTION\System\BIOS");
                label18.Text = "系统名称：" + key18.GetValue("ProductName");
                label19.Text = "系统版本：" + key18.GetValue("CurrentVersion") + "   " + key18.GetValue("CurrentBuildNumber");
                label20.Text = "系统路径：" + key18.GetValue("SystemRoot");
                label21.Text = "系统ID：" + key18.GetValue("ProductId");
                label22.Text = "系统用户：" + key18.GetValue("RegisteredOwner");
                label23.Text = "CPU型号：" + key19.GetValue("ProcessorNameString");
                label24.Text = "CPU主频：" + key19.GetValue("~MHz") + " MHz";
                label25.Text = "主板型号：" + key20.GetValue("BaseBoardManufacturer") + "   " + key20.GetValue("BaseBoardProduct");
            }
            catch { }
        }