Watch on File System using FileSystemWatcher

public FileSystemWatcher fsw;

     public void StartMonitoring()
     {

          //Get all Drives of Computer
           DriveInfo[] dinfo = DriveInfo.GetDrives();
          //Loop Through All The Drives
          foreach (DriveInfo d in dinfo)
          {
             try
             {

                 fsw = new FileSystemWatcher(d.RootDirectory.ToString());
                 fsw.EnableRaisingEvents = true;
                 fsw.IncludeSubdirectories = true;
                 fsw.Renamed += new RenamedEventHandler(FileRenamed);
                 fsw.Created += new FileSystemEventHandler(FileCreated);
                 fsw.Deleted += new FileSystemEventHandler(FileDeleted);
             }
             catch
             {
             }
         }
     }
     public void FileRenamed(Object Sender, RenamedEventArgs e)
     {
        messagebox.show( e.FullPath, "Renamed");
     }
     public void FileCreated(Object Sender, FileSystemEventArgs e)
     {

          messagebox.show( e.FullPath, "Created");
     }
     public void FileDeleted(Object Sender, FileSystemEventArgs e)
     {
           messagebox.show( e.FullPath, "Deleted");
     }
     public void StopMonitoring()
     {
          fsw.Dispose();
     }