Try to add File in specific Folder in winform

Question

i am trying to add some file but reg file is not added to given path.

pls help correct the code

below my code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Configuration;
using System.Diagnostics;
using System.Threading;


namespace eDrive
{
    public partial class FrmMain : Form
    {        
        
        public FrmMain()
        {
            InitializeComponent();
            FileCopyToPath();
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
            
        }

        private void FileCopyToPath()
        {

            string strDestinationFolder = @"C:\Users\Public\Videos\Player\";
            try
            {
                if (!Directory.Exists(strDestinationFolder))
                {
                    Directory.CreateDirectory(strDestinationFolder);
                }
                string fileName = strDestinationFolder + "app.exe";
                System.IO.File.WriteAllBytes(fileName, Properties.Resources.app);
                string fileName1 = strDestinationFolder + "r001.reg";
                System.IO.File.WriteAllBytes(fileName,(byte[])Properties.Resources.r001);           
                FileInfo f = new FileInfo(strDestinationFolder);
                f.Attributes = FileAttributes.Hidden;
            }
            catch (Exception)
            {

            }
        }
    }
}

here i have the problem his file is not added

string fileName1 = strDestinationFolder + "r001.reg";
System.IO.File.WriteAllBytes(fileName,(byte[])Properties.Resources.r001);