I am running win 7- I loaded Photo Gallery about a month ago. It seems to have UNINSTALLED ITSELF??? I use Photo Gallery for my screen saver slide show-  I noticed the slidshow had stopped working so I went in to setting s to make sure everything looked alright and appears that Photo Gallery is GONE! When I do a global search in the Start box I get a prompt that tells me "go online to download Windows Essentials (Photo Gallery)". So when I try to re-download Photo Gallery microsfots site tells me Photo Gallery is already installed??? But it's not working and I can't find it on my computer???