I am try to develop an application that will allow me to delete files and folders in areas of a perticular profile. I keep getting an access deny error. Here is my code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace IS_Application
{
    public partial class frmMain : Form
    {

        public frmMain()
        {
            InitializeComponent();
        }

        private void btnRemove_Click(object sender, EventArgs e)
        {
            
             try
            {
                string user = textBox1.Text;
                DirectoryInfo username = new DirectoryInfo("C:\\Documents and Settings\\" + user);

                if (Directory.Exists(@"C:\Documents and Settings\" + user))

                File.Delete("C:\\Documents and Settings\\" + user + "\\Local Settings\\Temp\\");
                File.Delete("C:\\Documents and Settings\\" + user + "\\Local Settings\\Temp\\Temporary Internet Files\\");
                File.Delete("C:\\Documents and Settings\\" + user + "\\Application Data\\");

                //Directory.Delete("C:\\Documents and Settings\\" + user + "\\Local Settings\\Temp\\");
                //Directory.Delete("C:\\Documents and Settings\\" + user + "\\Local Settings\\Temp\\Temporary Internet Files\\");
            }
            catch (Exception)
            {
                throw;
            }
         }
     }
}