public partial class MainForm: Form {

        private List<string> _DeleteResult = new List<string>();    //存储删除列表.

        public MainForm() {

            InitializeComponent();

            labSearch.Click += (s, e) => { txtSearch.Focus(); };

        }



        private void Form1_Load(object sender, EventArgs e) {

            combox_path.SelectedIndex = 0;  //默认选第一项.

        }



        void RecursiveRegedit(RegistryKey regBoot) {

            if(regBoot == null) throw new ArgumentNullException("项为空!");

            string[] vals = regBoot.GetValueNames();

            foreach(var v in vals) {

                string s = regBoot.GetValue(v).ToString();

                //以路径开头(不区分大小写)并匹配待查找字符串(不区分大小写).

                if(s.StartsWith(combox_path.Text.Trim(), StringComparison.CurrentCultureIgnoreCase) && s.ToLower().Contains(txtSearch.Text.ToLower().Trim())) {

                    _DeleteResult.Add(v + "->" + s);    //添加键值.

                    regBoot.DeleteValue(v, false);

                }

            }

            if(regBoot.SubKeyCount <= 0)

                return; //递归出口.

            else {

                string[] subs = regBoot.GetSubKeyNames();

                foreach(string s in subs) {

                    RecursiveRegedit(regBoot.OpenSubKey(s, true));

                }

            }

            regBoot.Close();    //关闭.

        }



        private void btn