Access MyDocuments folder is denied

Question

I want to retrieve some pictures from MyDocuments folder, but my Try-Catch structure stopped me.

This is my code:
            try
            {
                string[] images = Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "*.png", SearchOption.AllDirectories);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }


This is the error that I receive:  http://imageshack.us/a/img203/7858/ht1f.png 
This is MyDocuments folder:  http://imageshack.us/a/img802/8558/mim5.png