转：http://blog.csdn.net/smartsmile2012/article/details/8682295

#region 获取cpu序列号 硬盘ID 网卡硬地址

        /**/

        ///  <summary>

        /// 获取cpu序列号

        ///  </summary>

        ///  <returns>string </returns>

        public static string GetCpuInfo()

        {

            string cpuInfo = "";

            ManagementClass cimobject = new ManagementClass("Win32_Processor");

            ManagementObjectCollection moc = cimobject.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                cpuInfo = mo.Properties["ProcessorId"].Value.ToString();

            }

            return cpuInfo.ToString();

        }

        /**////  <summary>

        /// 获取硬盘ID

        ///  </summary>

        ///  <returns>string </returns>

        public static string GetHDid()

        {

            string HDid = "";

            ManagementClass cimobject1 = new ManagementClass("Win32_DiskDrive");

            ManagementObjectCollection moc1 = cimobject1.GetInstances();

            foreach (ManagementObject mo in moc1)

            {

                HDid = (string)mo.Properties["Model"].Value;

            }

            return HDid.ToString();

        }

        /**////  <summary>

        /// 获取网卡硬件地址

        ///  </summary>

        ///  <returns>string </returns>

        public static string GetMoAddress()

        {

            string MoAddress = "";

            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc2 = mc.GetInstances();

            foreach (ManagementObject mo in moc2)

            {

                if ((bool)mo["IPEnabled"] == true)

                    MoAddress = mo["MacAddress"].ToString();

                mo.Dispose();

            }

            return MoAddress.ToString();

        }

        #endregion

        #region 操作注册表

        /// <summary>

        /// 读取指定名称的注册表的值

        /// </summary>

        /// <param name="name">注册表值</param>

        /// <returns></returns>

        private static string GetRegistData(string name)

        {

            string registData;

            RegistryKey hkml = Registry.LocalMachine;

            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);

            RegistryKey aimdir = software.OpenSubKey("CSharpCode", true);

            registData = aimdir.GetValue(name).ToString();

            return registData;

        }

        /// <summary>

        /// 注册表中写数据

        /// </summary>

        /// <param name="name">注册表</param>

        /// <param name="tovalue">值</param>

        private void WTRegedit(string name, string tovalue)

        {

            RegistryKey hklm = Registry.LocalMachine;

            RegistryKey software = hklm.OpenSubKey("SOFTWARE", true);

            RegistryKey aimdir = software.CreateSubKey("CSharpCode");

            aimdir.SetValue(name, tovalue);

        }

        /// <summary>

        /// .删除注册表中指定的注册表项

        /// </summary>

        /// <param name="name">注册表</param>

        private void DeleteRegist(string name)

        {

            string[] aimnames;

            RegistryKey hkml = Registry.LocalMachine;

            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);

            RegistryKey aimdir = software.OpenSubKey("CSharpCode", true);

            aimnames = aimdir.GetSubKeyNames();

            foreach (string aimKey in aimnames)

            {

                if (aimKey == name)

                    aimdir.DeleteSubKeyTree(name);

            }

        }

        /// <summary>

        /// 判断指定注册表项是否存在

        /// </summary>

        /// <param name="name">注册表</param>

        /// <returns></returns>

        private static bool IsRegeditExit(string name)

        {

            bool _exit = false;

            string[] subkeyNames;

            RegistryKey hkml = Registry.LocalMachine;

            RegistryKey software = hkml.OpenSubKey("SOFTWARE", true);

            subkeyNames = software.GetSubKeyNames();

            foreach (string keyName in subkeyNames)

            {

                if (keyName == name)

                {

                    _exit = true;

                    return _exit;

                }

            }

            return _exit;

        }

        #endregion