where the files are uploaded/saved using "FileUpload" Control

Hello,
can anyone tell me where the files are uploaded using "FileUpload" Control.I have used the following code

protected void Button1_Click(object sender, EventArgs e)
    {
        cmd.Connection = con;
        cmd.CommandType = CommandType.StoredProcedure;
       
        cmd.Parameters.AddWithValue("@Path1",FileUpload1 );  
       Path1 = Server.MapPath("upload"); 
    
        if (FileUpload1.PostedFile .FileName !=null && FileUpload1.PostedFile .ContentLength >0) 
        {


            string filename = Path.GetFileName(FileUpload1.PostedFile.FileName);
            string savetoupload = Path1 + "D:\\new" + filename;
            Label1.Text = "file uploaded" +  filename;
        
        }
    }
}

obviously the file isn't saved in D: either.