You don't have what window revealed? And what do you mean by the "simple" version? You have installed the new cloud-based Lightroom CC, which is an all-new version of Lightroom. Is that the version that you understood that you were downloading? What I would consider to be the traditional Lightroom is now called Lightroom Classic CC. Or, if you prefer the standalone version, Lightroom 6 is still available for purchase. However, it will not be updated any further after the end of this year.